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Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities

1,6-Anhydro-beta-D-galactose Manufacturer/High quality/Best price/In stock

Cas:644-76-8

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 1,6-Anhydro-D-Galactopyranose supplier in China

Cas:644-76-8

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory Price API 99% 1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE 644-76-8 GMP Manufacturer

Cas:644-76-8

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM--644-76-8--High purity 1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE factory price Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had establi

TIANFUCHEM--644-76-8--High purity 1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE factory price

Cas:644-76-8

Min.Order:1 Metric Ton

FOB Price: $2000.0

Type:Lab/Research institutions

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Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Factory direct supply CAS 644-76-8 with best quality

Cas:644-76-8

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam

1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE CAS644-76-8

Cas:644-76-8

Min.Order:1 Kilogram

FOB Price: $7.0 / 10.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Name 1,6-Anhydro-beta-D-Galactopyranose Synonyms 1,6-anhydro-β-D-galactopyranose; 1,6-Anhydro-D-Galactose; 6,8-Dioxa-bicyclo[3.2.1]octane-2,3,4-triol;.beta-D-Galactopyranose, 1,6-anhydro-;1,6-Anhydro-b-D-galactose;D-GALAC

1,6-Anhydro-D-Galactopyranose

Cas:644-76-8

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

1,6-Anhydro-beta-D-galactose 644-76-8

Cas:644-76-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Leader Biochemical Group

About Product Details Items Specifications Test Results Appearance White to white crystalline powde

China Biggest Factory Manufacturer Supply 1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE CAS 644-76-8

Cas:644-76-8

Min.Order:100 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE CAS:644-76-8 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality

1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE CAS:644-76-8

Cas:644-76-8

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

1,6-Anhydro-beta-D-galactose

Cas:644-76-8

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

1,6-Anhydro-beta-D-galactose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

1,6-Anhydro-D-Galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Manufacturers

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Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

1,6-Anhydro-beta-D-galactose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality 1,6-Anhydro-D-Galactopyranose

Cas:644-76-8

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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Greenutra Resource Inc

1,6-anhydro-B-D-galactopyranoseAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air

1,6-anhydro-B-D-galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Trading Company

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GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

1,6-Anhydro-beta-D-galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

1,6-anhydro-B-D-galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Other

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Lonwin Chemical Group Limited

Shanghai Lonwin Chemical company is a subsidiary of Lonwin Industry Group Limited, was established in 2011 and is headquartered in Shanghai, adjacent to China National Convention and Exhibition Center and Hongqiao transportation hub.Lonwinchem is

Best price 1,6-Anhydro-D-Galactopyranose 644-76-8

Cas:644-76-8

Min.Order:100 Kilogram

FOB Price: $100.0 / 150.0

Type:Other

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JINHUA HUAYI CHEMICAL CO., LTD.

Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands

1,6-Anhydro-D-Galactopyranose

Cas:644-76-8

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

1,6-Anhydro-D-Galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Manufacturers

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Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

1,6-anhydro-B-D-galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE

Cas:644-76-8

Min.Order:0

Negotiable

Type:Manufacturers

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Hunan chemfish Pharmaceutical co.,Ltd

Hunan chemfish Pharmaceutical co.,Ltd.located in Lugu High-tech industral park ,Hunan province . with its own R&D center and more than 10000㎡manufacture plant . Chemfish owns 40 reactors from 1000L to 8000L. With complete auxiliary equipment as

1,6-Anhydro-beta-d-galactopyranose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

1,6-Anhydro-beta-D-galactose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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DB BIOTECH CO., LTD

best seller Application:API

1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE

Cas:644-76-8

Min.Order:0

Negotiable

Type:Trading Company

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BOC Sciences

We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white crystalline powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use

1,6-Anhydro-beta-D-galactose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

1,6-Anhydro-beta-D-galactose cas 644-76-8Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

1,6-Anhydro-beta-D-galactose cas 644-76-8

Cas:644-76-8

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

1,6-ANHYDRO-BETA-D-GALACTOPYRANOSE

Cas:644-76-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Sartort Biopharma Co., Ltd

Best quality with low price Storage:ln stock Package:25kg/Barrel Application:Chemicals Transportation:Express/Sea/Air Port:Shanghai

1,6-Anhydro-beta-D-galactose

Cas:644-76-8

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Synthetic route

D-Galactose
10257-28-0

D-Galactose

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With 2-chloro-1,3-dimethylimidazolinium chloride; triethylamine In water at 0℃; for 0.25h;99%
phenyl-2,3,4,6-tetra-O-acetyl-β-D-galactopyranoside
2872-72-2

phenyl-2,3,4,6-tetra-O-acetyl-β-D-galactopyranoside

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With sodium hydroxide for 120h; Heating;95%
With sodium hydroxide In water for 120h; Heating;95%
Pentachlorophenyl 2,3,4,6-tetra-O-acetyl-β-D-galactose
91876-32-3

Pentachlorophenyl 2,3,4,6-tetra-O-acetyl-β-D-galactose

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With potassium hydroxide for 1h; Heating;75%
1,6-anhydro-2,3,4-tri-O-benzyl-β-D-galactopyranose
29704-64-1

1,6-anhydro-2,3,4-tri-O-benzyl-β-D-galactopyranose

A

1,6-anhydro-3-O-benzoyl-2-O-benzyl-β-D-galactopyranose
104477-44-3

1,6-anhydro-3-O-benzoyl-2-O-benzyl-β-D-galactopyranose

B

1,6-anhydro-3-O-benzoyl-β-D-galactopyranose
71019-57-3

1,6-anhydro-3-O-benzoyl-β-D-galactopyranose

C

1,6-anhydro-3,4-di-O-benzyl-β-D-galactopyranose
66963-43-7

1,6-anhydro-3,4-di-O-benzyl-β-D-galactopyranose

D

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
palladium on activated charcoal In isopropyl alcohol for 5h; Heating; further O-benzyl protecting 1,6-anhydrohexoses, various reaction time;A n/a
B 70%
C 40%
D n/a
1,6-anhydro-2,3,4-tri-O-benzyl-β-D-galactopyranose
29704-64-1

1,6-anhydro-2,3,4-tri-O-benzyl-β-D-galactopyranose

A

1,6-anhydro-3-O-benzoyl-β-D-galactopyranose
71019-57-3

1,6-anhydro-3-O-benzoyl-β-D-galactopyranose

B

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
palladium on activated charcoal In isopropyl alcohol for 5h; Heating;A 70%
B n/a
With isopropyl alcohol; palladium on activated charcoal for 5h; Heating;A 70%
B n/a
1,6-anhydro-2,3,4-tri-O-acetyl-β-D-galactopyranose
4132-24-5

1,6-anhydro-2,3,4-tri-O-acetyl-β-D-galactopyranose

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With ammonium hydroxide In methanol for 15h; Ambient temperature;59%
With sodium methylate
3-(β-D-galactopyranosyloxy)-2-furanyl methyl ketone
82756-28-3

3-(β-D-galactopyranosyloxy)-2-furanyl methyl ketone

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With pyrrolidine; triethylamine In ethanol at 79 - 80℃; for 24h;41%
β-D-galactopyranoside
7296-64-2

β-D-galactopyranoside

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
at 360℃; under 0.1 Torr;
D-Galactose
59-23-4

D-Galactose

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

1,6-Anhydro-α-D-galactofuranose
33818-21-2

1,6-Anhydro-α-D-galactofuranose

Conditions
ConditionsYield
under 15 Torr;
With sulfuric acid
at 265 - 375℃; under 2 Torr; α-D-Galactopyranose;
D-Galactose
59-23-4

D-Galactose

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
at 360℃; under 0.1 Torr; β-D-Galactopyranose;
trimethyl-(tetra-O-acetyl-β-D-galactopyranosyl)-ammonium; bromide
60583-05-3

trimethyl-(tetra-O-acetyl-β-D-galactopyranosyl)-ammonium; bromide

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With barium dihydroxide; water
β-D-galactopyranosyl fluoride
2021-62-7

β-D-galactopyranosyl fluoride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With barium dihydroxide; water
1,6-anhydro-3,4-O-isopropylidene-β-D-galactopyranose
52579-97-2

1,6-anhydro-3,4-O-isopropylidene-β-D-galactopyranose

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With hydrogenchloride
phenyl-β-D-galactopyranoside
2818-58-8

phenyl-β-D-galactopyranoside

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With potassium hydroxide
LACTOSE
5965-66-2

LACTOSE

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

levoglucosan
498-07-7

levoglucosan

Conditions
ConditionsYield
under 15 Torr; Erhitzen;
1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside
3068-32-4

1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With potassium phenolate; phenol Erwaermen des Reaktionsprodukts mit wss. Kalilauge;
Multi-step reaction with 2 steps
1: 85 percent / acetone / 2 h / Heating
2: 75 percent / aq. KOH / 1 h / Heating
View Scheme
2-O-(benzoyl)-1,6-anhydro-3,4-dideoxy-β-D-erythro-hex-3-enopyranose
67307-86-2

2-O-(benzoyl)-1,6-anhydro-3,4-dideoxy-β-D-erythro-hex-3-enopyranose

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

1,6-anhydro-β-D-glucopyranoside
14059-68-8

1,6-anhydro-β-D-glucopyranoside

Conditions
ConditionsYield
With ammonium hydroxide; osmium(VIII) oxide; 4-methylmorpholine N-oxide 1.) acetone, H2O, RT, 20 h, 2.) CH3OH, RT, overnight; var. 2-O-acyl protected 1,6-anhydro-3,4-dideoxy-β-D-erythro-hex-3-enopyranoses;
1,6-anhydro-β-D-galactopyranose
125164-19-4

1,6-anhydro-β-D-galactopyranose

A

1,6-anhydro-3-O-butanoyl-β-D-galactopyranose
128333-92-6

1,6-anhydro-3-O-butanoyl-β-D-galactopyranose

B

1,6-anhydro-4-O-butanoyl-β-D-galactopyranose
128333-91-5

1,6-anhydro-4-O-butanoyl-β-D-galactopyranose

C

1,6-anhydro-3,4-di-O-butanoyl-β-D-galactopyranose
125164-20-7

1,6-anhydro-3,4-di-O-butanoyl-β-D-galactopyranose

D

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With enzymes from C. cylindracea; Pancreas Product distribution; different times;
1,6-anhydro-3,4-O-<5-(hydroxymethyl)-2-furfurylidene>-β-D-galactopyranose
95881-40-6

1,6-anhydro-3,4-O-<5-(hydroxymethyl)-2-furfurylidene>-β-D-galactopyranose

(2,4-dinitro-phenyl)-hydrazine
119-26-6

(2,4-dinitro-phenyl)-hydrazine

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

5-(hydroxymetyl)-2-furaldehyde 2,4-dinitrophenylhydrazone
15465-62-0

5-(hydroxymetyl)-2-furaldehyde 2,4-dinitrophenylhydrazone

Conditions
ConditionsYield
With hydrogenchloride In methanol for 0.5h; Ambient temperature;
(2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-phenoxytetrahydro-2H-pyran-3,4,5-triyl triacetate
18463-30-4

(2R,3S,4S,5R,6R)-2-(acetoxymethyl)-6-phenoxytetrahydro-2H-pyran-3,4,5-triyl triacetate

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With sodium hydroxide at 100℃;
sodium methylate
124-41-4

sodium methylate

1-O-tosyl-2,3,4,6-tetra-O-acetyl-D-galactopyranose

1-O-tosyl-2,3,4,6-tetra-O-acetyl-D-galactopyranose

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

methyl beta-D-galactopyranoside
1824-94-8

methyl beta-D-galactopyranoside

C

methyl α-D-galactopyranoside
3396-99-4

methyl α-D-galactopyranoside

Conditions
ConditionsYield
In pyridine; methanol at 80℃; for 2.5h;
1-O-tosyl-2,3,4,6-tetra-O-acetyl-D-galactopyranose

1-O-tosyl-2,3,4,6-tetra-O-acetyl-D-galactopyranose

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

methyl beta-D-galactopyranoside
1824-94-8

methyl beta-D-galactopyranoside

C

methyl α-D-galactopyranoside
3396-99-4

methyl α-D-galactopyranoside

Conditions
ConditionsYield
With sodium methylate In pyridine; methanol at 80℃; for 2.5h;
water
7732-18-5

water

β-D-galactopyranosyl fluoride
2021-62-7

β-D-galactopyranosyl fluoride

barium hydroxide

barium hydroxide

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

D-Galactose
59-23-4

D-Galactose

sulfuric acid
7664-93-9

sulfuric acid

A

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

B

1,6-Anhydro-α-D-galactofuranose
33818-21-2

1,6-Anhydro-α-D-galactofuranose

water
7732-18-5

water

trimethyl-(tetra-O-acetyl-β-D-galactopyranosyl)-ammonium; bromide
60583-05-3

trimethyl-(tetra-O-acetyl-β-D-galactopyranosyl)-ammonium; bromide

barium hydroxide

barium hydroxide

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

β-D-galactose peracetate
4163-60-4

β-D-galactose peracetate

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: p-TsOH / 1.5 h / 90 °C / 15 Torr
2: 95 percent / NaOH / H2O / 120 h / Heating
View Scheme
Multi-step reaction with 2 steps
1: 77 percent / p-toluenesulfonic acid / 1.5 h / 95 °C / 15 Torr
2: 95 percent / aq. NaOH / 120 h / Heating
View Scheme
Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine
2: MeONa / methanol; pyridine / 2.5 h / 80 °C
View Scheme
2,3,4,6-tetra-O-acetyl-β-galactopyranosyl fluoride
4163-45-5

2,3,4,6-tetra-O-acetyl-β-galactopyranosyl fluoride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium methylate; methanol
2: barium hydroxide; water
View Scheme
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

1,6-Anhydro-β-D-xylo-hexapyranose-3-ulose
2595-18-8

1,6-Anhydro-β-D-xylo-hexapyranose-3-ulose

Conditions
ConditionsYield
With phenyltrimethylammonium tribromide; potassium carbonate In tetrahydrofuran; methanol at 20℃; for 4h; Solvent; regioselective reaction;99%
With p-benzoquinone In [D3]acetonitrile at 50℃; for 1h; Solvent; chemoselective reaction;80 %Spectr.
triethylsilyl chloride
994-30-9

triethylsilyl chloride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

C12H24O5Si
1452154-12-9

C12H24O5Si

Conditions
ConditionsYield
With (2R,4S)-3-((R)-cyclopentyl(1-methyl-1H-imidazol-2-yl)methyl)-4-isopropyl-2-methoxyoxazolidine; N,N-diisopropylethylamine hydrochloride; N-ethyl-N,N-diisopropylamine for 4h; regioselective reaction;98%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide
572-09-8

2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide

1,6-anhydro-4-O-(2’,3’,4’,6’-tetra-O-acetyl-β-D-glucopyranosyl)-β-D-galactopyranoside
1330004-27-7

1,6-anhydro-4-O-(2’,3’,4’,6’-tetra-O-acetyl-β-D-glucopyranosyl)-β-D-galactopyranoside

Conditions
ConditionsYield
Stage #1: 1,6-anhydro-β-D-galactopyranose With diphenyltin(IV) dichloride In acetonitrile at 20℃; for 0.166667h;
Stage #2: 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide With 5,5'-dimethyl-2,2'-bipyridine; silver(l) oxide In acetonitrile at 20 - 35℃; for 24h; Koenigs-Knorr Glycosidation; stereoselective reaction;
96%
With diphenylborate ethanolamine ester; silver(l) oxide In acetonitrile at 60℃; for 16h; Koenigs-Knorr synthesis; Inert atmosphere; regioselective reaction;73%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

1,6-anhydro-β-D-galactopyranose 3,4-ethoxyacetal
128790-77-2

1,6-anhydro-β-D-galactopyranose 3,4-ethoxyacetal

Conditions
ConditionsYield
With sulfonic acid In N,N-dimethyl-formamide for 12h; Ambient temperature;95%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

2,2-dimethoxy-propane
77-76-9

2,2-dimethoxy-propane

1,6-anhydro-3,4-O-isopropylidene-β-D-galactopyranose
52579-97-2

1,6-anhydro-3,4-O-isopropylidene-β-D-galactopyranose

Conditions
ConditionsYield
With toluene-4-sulfonic acid In N,N-dimethyl-formamide for 1h; Ambient temperature;95%
With toluene-4-sulfonic acid In acetone for 16h; Ambient temperature;79%
With toluene-4-sulfonic acid In acetone ketalization;
acetic anhydride
108-24-7

acetic anhydride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

D-galactose pentaacetate
25878-60-8

D-galactose pentaacetate

Conditions
ConditionsYield
scandium tris(trifluoromethanesulfonate) at 20℃; for 5h;95%
benzoyl chloride
98-88-4

benzoyl chloride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

1,6-Anhydro-2,3,4-tri-O-benzoyl-β-D-galactopyranose
91876-33-4

1,6-Anhydro-2,3,4-tri-O-benzoyl-β-D-galactopyranose

Conditions
ConditionsYield
With pyridine94%
With pyridine
benzyl bromide
100-39-0

benzyl bromide

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

1,6-anhydro-4-O-benzyl-β-D-galactopyranoside
116836-98-7

1,6-anhydro-4-O-benzyl-β-D-galactopyranoside

Conditions
ConditionsYield
With 3 A molecular sieve; bis(tri-n-butyltin)oxide; 1-methyl-1H-imidazole; tetra-(n-butyl)ammonium iodide In toluene 1.) reflux, 15 h; 2.) 1.5 h;93%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

acetyl chloride
75-36-5

acetyl chloride

4-O-acetyl-1,6-anhydro-β-D-galactopyranose
128333-94-8

4-O-acetyl-1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With (2R,4S)-3-((R)-cyclopentyl(1-methyl-1H-imidazol-2-yl)methyl)-4-isopropyl-2-methoxyoxazolidine; N,N-diisopropylethylamine hydrochloride; N-ethyl-N,N-diisopropylamine for 4h; regioselective reaction;93%
methanesulfonyl chloride
124-63-0

methanesulfonyl chloride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

C7H12O7S
1452154-26-5

C7H12O7S

Conditions
ConditionsYield
With (2R,4S)-3-((R)-cyclopentyl(1-methyl-1H-imidazol-2-yl)methyl)-4-isopropyl-2-methoxyoxazolidine; N,N-diisopropylethylamine hydrochloride; N-ethyl-N,N-diisopropylamine for 4h; regioselective reaction;88%
benzyl bromide
100-39-0

benzyl bromide

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

A

1,6-anhydro-3-O-benzyl-β-D-galactopyranoside
76819-15-3

1,6-anhydro-3-O-benzyl-β-D-galactopyranoside

B

1,6-anhydro-4-O-benzyl-β-D-galactopyranoside
116836-98-7

1,6-anhydro-4-O-benzyl-β-D-galactopyranoside

Conditions
ConditionsYield
With tetrabutylammomium bromide; di(n-butyl)tin oxide; N-ethyl-N,N-diisopropylamine In neat (no solvent) at 70℃; for 3.5h; regioselective reaction;A 10%
B 87%
With diphenylborate ethanolamine ester; silver(l) oxide In acetonitrile at 40℃; for 48h; Inert atmosphere; regioselective reaction;A n/a
B 73%
With 3 A molecular sieve; bis(tri-n-butyltin)oxide; 1-methyl-1H-imidazole In toluene Product distribution; effect of the other catalyst (tetrabutylammonium halide) and reaction time;
With 3 A molecular sieve; bis(tri-n-butyltin)oxide; 1-methyl-1H-imidazole; tetrabutylammomium bromide In toluene 1.) reflux, 15 h; 2.) 7 h;A 20 % Chromat.
B 80 % Chromat.
tert-butyldimethylsilane
29681-57-0

tert-butyldimethylsilane

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

A

2,4-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

2,4-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

B

2,3-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

2,3-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

C

2,3,4-tris(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

2,3,4-tris(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

Conditions
ConditionsYield
With [Ir(COD)(PPh3)2]SbF6 In N,N-dimethyl acetamide at 70℃;A 87%
B 4%
C 6%
C36H40O5Si

C36H40O5Si

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

A

C42H50O10Si

C42H50O10Si

B

C42H50O10Si

C42H50O10Si

Conditions
ConditionsYield
With 4-nitrophenylboronic acid In acetonitrile at 0℃; for 2h; Temperature; Inert atmosphere;A 87%
B 10%
p-Anisaldehyde dimethyl acetal
2186-92-7

p-Anisaldehyde dimethyl acetal

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

1,6-anhydro-endo-3,4-O-(4-methoxybenzylidene)-β-D-galactopyranose
157886-59-4

1,6-anhydro-endo-3,4-O-(4-methoxybenzylidene)-β-D-galactopyranose

Conditions
ConditionsYield
With toluene-4-sulfonic acid In N,N-dimethyl-formamide at 25℃; for 3h;86%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

p-toluenesulfonyl chloride
98-59-9

p-toluenesulfonyl chloride

1,6-anhydro-3-O-(4-toluenesulfonyl)-β-D-galactopyranoside
1372890-67-9

1,6-anhydro-3-O-(4-toluenesulfonyl)-β-D-galactopyranoside

Conditions
ConditionsYield
With 1-methyl-1H-imidazole; 2-((R)-quinolin-4-yl((1S,2R,4S,5R)-5-vinylquinuclidin-2-yl)methyl)-2,3-dihydro-1H-benzo[c][1,2]azaborol-1-ol; sodium carbonate In acetonitrile at 20℃; for 48h; regioselective reaction;84%
With 2-Aminoethoxydiphenylborane; N-ethyl-N,N-diisopropylamine In acetonitrile at 23℃; for 48h; Inert atmosphere; regioselective reaction;83%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

4-Methoxybenzaldehyde dipent-4-enyl acetal
157886-54-9

4-Methoxybenzaldehyde dipent-4-enyl acetal

(1R,2S,6R,7R,8R)-4-(4-Methoxy-phenyl)-3,5,9,11-tetraoxa-tricyclo[6.2.1.02,6]undecan-7-ol

(1R,2S,6R,7R,8R)-4-(4-Methoxy-phenyl)-3,5,9,11-tetraoxa-tricyclo[6.2.1.02,6]undecan-7-ol

Conditions
ConditionsYield
With N-Bromosuccinimide; camphor-10-sulfonic acid In acetonitrile for 0.25h; Ambient temperature;82%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

4-Methoxybenzaldehyde dipent-4-enyl acetal
157886-54-9

4-Methoxybenzaldehyde dipent-4-enyl acetal

1,6-Anhydro-endo-3,4-O-(4-methoxybenzylidene)-β-D-galactopyranose

1,6-Anhydro-endo-3,4-O-(4-methoxybenzylidene)-β-D-galactopyranose

Conditions
ConditionsYield
With N-Bromosuccinimide; camphor-10-sulfonic acid In acetonitrile for 0.25h; Ambient temperature;82%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

2,2-dimethoxy-propane
77-76-9

2,2-dimethoxy-propane

1,6-anhydro-3,4-O-isopropylidene-β-D-galactose

1,6-anhydro-3,4-O-isopropylidene-β-D-galactose

Conditions
ConditionsYield
With toluene-4-sulfonic acid In tetrahydrofuran81%
benzaldehyde
100-52-7

benzaldehyde

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

1,6-anhydro-3,4-O-(S)-benzylidene-β-D-galactopyranose
71021-25-5

1,6-anhydro-3,4-O-(S)-benzylidene-β-D-galactopyranose

Conditions
ConditionsYield
With zinc(II) chloride78%
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

2-bromomethylnaphthyl bromide
939-26-4

2-bromomethylnaphthyl bromide

A

1,6-anhydro-4-O-(2-naphthyl)methyl-β-D-galactopyranoside
1309382-52-2

1,6-anhydro-4-O-(2-naphthyl)methyl-β-D-galactopyranoside

B

1,6-anhydro-3-O-(2-naphthyl)methyl-β-D-galactopyranoside

1,6-anhydro-3-O-(2-naphthyl)methyl-β-D-galactopyranoside

Conditions
ConditionsYield
With diphenylborate ethanolamine ester; silver(l) oxide In acetonitrile at 40℃; for 48h; Inert atmosphere; regioselective reaction;A 74%
B n/a
1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

polymer, Mw 26900 by static laser light scattering; monomer(s): 1,6-anhydro-β-D-galactopyranose

polymer, Mw 26900 by static laser light scattering; monomer(s): 1,6-anhydro-β-D-galactopyranose

Conditions
ConditionsYield
With (S-2-butenyl)tetramethylenesulfonium hexafluoroantimonate In various solvent(s) at 150℃; for 0.666667h;63.1%
Benzyloxymethyl chloride
3587-60-8

Benzyloxymethyl chloride

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

A

1,6-anhydro-4-O-benzyloxymethyl-β-D-galactopyranoside
1309382-53-3

1,6-anhydro-4-O-benzyloxymethyl-β-D-galactopyranoside

B

1,6-anhydro-3-O-benzyloxymethyl-β-D-galactopyranoside

1,6-anhydro-3-O-benzyloxymethyl-β-D-galactopyranoside

Conditions
ConditionsYield
With diphenylborate ethanolamine ester; silver(l) oxide In acetonitrile at 40℃; for 48h; Inert atmosphere; regioselective reaction;A 63%
B n/a
tert-butyldimethylsilane
29681-57-0

tert-butyldimethylsilane

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

A

2,4-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

2,4-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

B

2,3-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

2,3-O-bis(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

C

(1R,2S,3R,4R,5R)-2,3-Bis-(tert-butyl-dimethyl-silanyloxy)-6,8-dioxa-bicyclo[3.2.1]octan-4-ol

(1R,2S,3R,4R,5R)-2,3-Bis-(tert-butyl-dimethyl-silanyloxy)-6,8-dioxa-bicyclo[3.2.1]octan-4-ol

D

2,3,4-tris(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

2,3,4-tris(t-butyldimethylsilyl)-1,6-anhydro-β-D-galactose

Conditions
ConditionsYield
With [Rh(COD)(PPh3)2]SbF6 In N,N-dimethyl acetamide at 70℃;A 62%
B 22%
C 3%
D 6%
benzaldehyde dimethyl acetal
1125-88-8

benzaldehyde dimethyl acetal

1,6-anhydro-β-D-galactopyranose
644-76-8

1,6-anhydro-β-D-galactopyranose

1,6-anhydro-endo-3,4-O-benzylidene-β-D-galactopyranose
93451-82-2

1,6-anhydro-endo-3,4-O-benzylidene-β-D-galactopyranose

Conditions
ConditionsYield
With toluene-4-sulfonic acid In N,N-dimethyl-formamide58%
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