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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

9H-Xanthen-9-one,1,3,6,7-tetrahydroxy- 3542-72-1

Cas:3542-72-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

norathyriol CAS:3542-72-1 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 organic intermediates

norathyriol CAS:3542-72-1

Cas:3542-72-1

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

9H-Xanthen-9-one,1,3,6,7-tetrahydroxy-

Cas:3542-72-1

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

9H-Xanthen-9-one,1,3,6,7-tetrahydroxy-

Cas:3542-72-1

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

Norathyriol

Cas:3542-72-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

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EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

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Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology 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 chemicals. W

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

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Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

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Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea

Acmec Norathyriol N58700 5mg

Cas:3542-72-1

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

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Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

Norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Manufacturers

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Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

ADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac

Norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Manufacturers

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Henan Tianfu Chemical Co., Ltd.

1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.

9H-Xanthen-9-one,1,3,6,7-tetrahydroxy-

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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

9H-Xanthen-9-one,1,3,6,7-tetrahydroxy-

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:Chemical intermediate

1,3,6,7-Tetrahydroxy-9H-xanthen-9-one

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Trading Company

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Hubei Langyou International Trading Co., Ltd

Norathyriol CAS NO.3542-72-1 Application:Norathyriol CAS NO.3542-72-1

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Other

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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

norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers2. Produce products of different specifications and sizes according to your requirements.3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures sta

norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Hunan Longxianng Runhui Trading Co.,Ltd

Norathyriol CAS NO.3542-72-1Appearance:solid Storage:Dry and ventilated Package:Standard or as customer's require Application:intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport)

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Shanghai Yuanye Bio-Technology Co., Ltd.

good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:5mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port

Norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Trading Company

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ZHEJIANG JIUZHOU CHEM CO.,LTD

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

norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Trading Company

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Nanjing Chemlin Chemical Co., Ltd.

Compound sourcing ServicesAgency of testing serviceFactory audit serviceFounded in Dec. 1999, Nanjing Chemlin Chemical Industrial Co.,Ltd(CHEMLIN) has been covering the business scope from trading of chemicals to custom-synthesis & Manufacturing. Co

3542-72-1

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Yinghao Pharm Co.,Ltd.

Yinghao Pharm products include: leader molecule, heterocyclic compounds,chiral compounds, photoelectric materials, biochemical reagents etc. For example:benzene, pyrimidine, boricacid,pyridine, pyrazole, imidazole, pyrrole, fluorine and other derivat

1,3,6,7-tetrahydroxy-9H-xanthen-9-one

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chengdu Push Bio-technology Co., Ltd

Chengdu Push Bio-technology Co., Ltd. provides more than 4,000 natural monomeric substances, including approximately 6,000 products at different grades, specifications and purities. We have specialized in the R&D of medicinally active ingredients sta

Norathyriol

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Nanjing Norris Pharm Technology Co., Ltd.

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

1,3,6,7-tetrahydroxy-9H-xanthen-9-one

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai united Scientific Co.,Ltd.

United Scientific Company Located in Shanghai of China , is a competitive player in the global specialty and fine chemical market. Fenghua has both the expertise and flexibility to produce a wide range of chemicals. Focusing on developing the innovat

9H-Xanthen-9-one,1,3,6,7-tetrahydroxy-

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shaanxi Cuicheng Biomedical Technology Co., Ltd.

Shaanxi Cuicheng Biomedical Technology Co., Ltd. is located in Chuangzhi Industrial Park, Economic and Technological Development Zone, Hanzhong City, Shaanxi Province, China. It is a company specializing in natural medicines and high-throughput scree

Mangiferitin(3542-72-1)

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hubei Jusheng Technology Co., Ltd.,

1,Best Quality: Our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us. 2,

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:10 Gram

FOB Price: $1.0 / 2.0

Type:Trading Company

inquiry

Henan Wising Chem Co., Ltd

WisingChem not only supply popular chemicals, but also R&D center offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. we could

norathyriol China

Cas:3542-72-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Taizhou volsen chemical Co., Ltd

We are a trading company aiming at providing high-quality services to customers. Established for many years, with good reputation in the industry Storage:Sealed and preserved Application:Fine chemical intermediates, used as the main raw material for

Norathyriol CAS NO.3542-72-1

Cas:3542-72-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

1,3,6,7-tetramethoxy-9H-xanthen-9-one
3542-74-3

1,3,6,7-tetramethoxy-9H-xanthen-9-one

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With hydrogen iodide In various solvent(s) at 160℃; for 8h;94%
With pyridine hydrochloride at 180℃; for 4.5h; Inert atmosphere;85%
With hydrogen bromide In water; acetone for 24h; Reflux; Inert atmosphere;50%
With hydrogen iodide
With pyridine hydrochloride
C21H18O11

C21H18O11

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Stage #1: C21H18O11 With trifluoroacetic anhydride In dichloromethane at 20 - 23℃; for 0.5h; Inert atmosphere;
Stage #2: With boron trifluoride diethyl etherate In dichloromethane at 20 - 23℃; for 2h; Inert atmosphere;
Stage #3: With methanol; potassium carbonate at 20 - 23℃; for 12h; Inert atmosphere;
87%
acide 2,4,6-trihydroxybenzoique
83-30-7

acide 2,4,6-trihydroxybenzoique

benzene-1,2-diol
120-80-9

benzene-1,2-diol

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With zinc(II) chloride; trichlorophosphate at 75℃; for 0.5h; Microwave irradiation;74.1%
mangiferin
4773-96-0

mangiferin

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With hydrogen iodide; phenol for 7h; Heating;43%
With hydrogenchloride; recorcinol In water for 6h; Reagent/catalyst; Reflux;
With hydrogenchloride; recorcinol In water at 150℃; for 6h; Reagent/catalyst; Green chemistry;
maclurin
519-34-6

maclurin

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With culture biomass of Rhodotorula buffonii In aq. phosphate buffer; N,N-dimethyl-formamide for 24h; Time; Microbiological reaction; Heating;25.52%
Stage #1: maclurin With potassium carbonate In water Cooling with ice;
Stage #2: With potassium hexacyanoferrate(III) In water at 20℃; for 5h; Inert atmosphere; Cooling with ice;
25.7%
1,3,6,7-tetrahydroxyxanthone acetate
2054-37-7

1,3,6,7-tetrahydroxyxanthone acetate

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With hydrogenchloride
With sulfuric acid
isomangiferin
24699-16-9

isomangiferin

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With hydrogen iodide; phenol at 150℃; for 5h; labelled comp.;
1,3,7-trihydroxy-6-methoxyxanthone
59092-97-6

1,3,7-trihydroxy-6-methoxyxanthone

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With hydrogen iodide for 2.5h; Heating; labelled comp.; Yield given;
2-D-glucopyranosyl-1,3,6,7-tetrahydroxy-9H-xanthen-9-one
906328-94-7

2-D-glucopyranosyl-1,3,6,7-tetrahydroxy-9H-xanthen-9-one

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
With hydrogen iodide; phenol at 150℃; for 5h; labelled comp.;
2,4,5-trimethoxybenzoyl chloride
42833-66-9

2,4,5-trimethoxybenzoyl chloride

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 1.) AlCl3, 2.) pyridine, 10percent aq. tetramethylammonium hydroxide / 1.) diethyl ether, RT, 8 h, 2.) reflux, 36 h
2: 94 percent / HI / various solvent(s) / 8 h / 160 °C
View Scheme
Multi-step reaction with 3 steps
1: aluminum (III) chloride / diethyl ether / 48 h / 20 °C
2: pyridine; tetra(n-butyl)ammonium hydroxide / water / 4 h / Reflux
3: pyridine hydrochloride
View Scheme
asaronic acid
490-64-2

asaronic acid

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: oxalyl chloride / benzene / 2 h / Ambient temperature
2: 1.) AlCl3, 2.) pyridine, 10percent aq. tetramethylammonium hydroxide / 1.) diethyl ether, RT, 8 h, 2.) reflux, 36 h
3: 94 percent / HI / various solvent(s) / 8 h / 160 °C
View Scheme
Multi-step reaction with 4 steps
1: thionyl chloride / Reflux
2: aluminum (III) chloride / diethyl ether / 48 h / 20 °C
3: pyridine; tetra(n-butyl)ammonium hydroxide / water / 4 h / Reflux
4: pyridine hydrochloride
View Scheme
Multi-step reaction with 2 steps
1.1: thionyl chloride / dichloromethane / 10 h / Reflux
1.2: 10 h / 0 °C / Reflux
1.3: 12 h / Reflux
2.1: hydrogen bromide / acetone; water / 24 h / Reflux; Inert atmosphere
View Scheme
2,5-dihydroxy-4-methoxybenzoic acid
5981-37-3

2,5-dihydroxy-4-methoxybenzoic acid

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: fused ZnCl2, POCl3 / 2 h / 70 °C
2: HI (d=1.7) / 2.5 h / Heating; labelled comp.
View Scheme
xanthene-1,3,6,7-tetraol
105904-53-8

xanthene-1,3,6,7-tetraol

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 3 steps
2: chromium (VI)-oxide; acetic acid; acetic acid anhydride
3: concentrated sulfuric acid
View Scheme
Multi-step reaction with 3 steps
2: chromium (VI)-oxide; acetic acid; acetic acid anhydride
3: aq.-ethanolic hydrochloric acid
View Scheme
1,3,6,7-tetraacetoxy-xanthene
102478-32-0

1,3,6,7-tetraacetoxy-xanthene

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: chromium (VI)-oxide; acetic acid; acetic acid anhydride
2: concentrated sulfuric acid
View Scheme
Multi-step reaction with 2 steps
1: chromium (VI)-oxide; acetic acid; acetic acid anhydride
2: aq.-ethanolic hydrochloric acid
View Scheme
2,4,6-trimethoxy-2'-hydroxy-4',5'-dimethoxybenzophenone
42833-68-1

2,4,6-trimethoxy-2'-hydroxy-4',5'-dimethoxybenzophenone

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine; tetra(n-butyl)ammonium hydroxide / water / 4 h / Reflux
2: pyridine hydrochloride
View Scheme
4-methyl-1,2-dihydroxybenzene
452-86-8

4-methyl-1,2-dihydroxybenzene

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: sodium periodate / dichloromethane; water / 1 h / 20 - 23 °C
2.1: N,N'-di-tert-butylethylenediamine; oxygen; copper(l) chloride / dichloromethane / 0.83 h / 20 - 23 °C / 1520.1 Torr
3.1: sodium dithionite / water / 0.5 h / 20 - 23 °C / Inert atmosphere
4.1: dibenzoyl peroxide; N-Bromosuccinimide / tetrachloromethane / 4 h / 80 °C / Inert atmosphere
4.2: 12 h / 20 - 23 °C / Inert atmosphere
5.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
6.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
6.2: 2 h / 20 - 23 °C / Inert atmosphere
6.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
4-methylbenzo-1,2-quinone
3131-54-2

4-methylbenzo-1,2-quinone

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: N,N'-di-tert-butylethylenediamine; oxygen; copper(l) chloride / dichloromethane / 0.83 h / 20 - 23 °C / 1520.1 Torr
2.1: sodium dithionite / water / 0.5 h / 20 - 23 °C / Inert atmosphere
3.1: dibenzoyl peroxide; N-Bromosuccinimide / tetrachloromethane / 4 h / 80 °C / Inert atmosphere
3.2: 12 h / 20 - 23 °C / Inert atmosphere
4.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
5.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
5.2: 2 h / 20 - 23 °C / Inert atmosphere
5.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
5-hydroxy-1,3-phenylene diacetate
116345-96-1

5-hydroxy-1,3-phenylene diacetate

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: N,N'-di-tert-butylethylenediamine; oxygen; copper(l) chloride / dichloromethane / 0.83 h / 20 - 23 °C / 1520.1 Torr
2.1: sodium dithionite / water / 0.5 h / 20 - 23 °C / Inert atmosphere
3.1: dibenzoyl peroxide; N-Bromosuccinimide / tetrachloromethane / 4 h / 80 °C / Inert atmosphere
3.2: 12 h / 20 - 23 °C / Inert atmosphere
4.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
5.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
5.2: 2 h / 20 - 23 °C / Inert atmosphere
5.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
C17H14O7

C17H14O7

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: sodium dithionite / water / 0.5 h / 20 - 23 °C / Inert atmosphere
2.1: dibenzoyl peroxide; N-Bromosuccinimide / tetrachloromethane / 4 h / 80 °C / Inert atmosphere
2.2: 12 h / 20 - 23 °C / Inert atmosphere
3.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
4.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
4.2: 2 h / 20 - 23 °C / Inert atmosphere
4.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
C21H20O9

C21H20O9

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: dibenzoyl peroxide; N-Bromosuccinimide / tetrachloromethane / 4 h / 80 °C / Inert atmosphere
1.2: 12 h / 20 - 23 °C / Inert atmosphere
2.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
3.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
3.2: 2 h / 20 - 23 °C / Inert atmosphere
3.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
C21H18O10

C21H18O10

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
2.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
2.2: 2 h / 20 - 23 °C / Inert atmosphere
2.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
3,5-dihydroxyphenol
108-73-6

3,5-dihydroxyphenol

norathyriol
3542-72-1

norathyriol

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: pyridine / 12 h / 20 - 23 °C
1.2: 24 h / 20 - 23 °C
2.1: N,N'-di-tert-butylethylenediamine; oxygen; copper(l) chloride / dichloromethane / 0.83 h / 20 - 23 °C / 1520.1 Torr
3.1: sodium dithionite / water / 0.5 h / 20 - 23 °C / Inert atmosphere
4.1: dibenzoyl peroxide; N-Bromosuccinimide / tetrachloromethane / 4 h / 80 °C / Inert atmosphere
4.2: 12 h / 20 - 23 °C / Inert atmosphere
5.1: sodium dihydrogenphosphate; sodium chlorite / water; dimethyl sulfoxide / 2 h / 20 - 23 °C
6.1: trifluoroacetic anhydride / dichloromethane / 0.5 h / 20 - 23 °C / Inert atmosphere
6.2: 2 h / 20 - 23 °C / Inert atmosphere
6.3: 12 h / 20 - 23 °C / Inert atmosphere
View Scheme
norathyriol
3542-72-1

norathyriol

chloromethyl methyl ether
107-30-2

chloromethyl methyl ether

1-hydroxy-3,6,7-tris(methoxymethoxy)-9H-xanthen-9-one
1314917-55-9

1-hydroxy-3,6,7-tris(methoxymethoxy)-9H-xanthen-9-one

Conditions
ConditionsYield
Stage #1: norathyriol With N-ethyl-N,N-diisopropylamine In dichloromethane for 0.25h;
Stage #2: chloromethyl methyl ether at 0 - 20℃; for 10h;
81.6%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 8h; Inert atmosphere;
norathyriol
3542-72-1

norathyriol

benzyl bromide
100-39-0

benzyl bromide

3,6,7-tris(benzyloxy)-1-hydroxy-9H-xanthen-9-one

3,6,7-tris(benzyloxy)-1-hydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With potassium carbonate In N,N-dimethyl-formamide at 40℃; for 4h;68%
norathyriol
3542-72-1

norathyriol

2-methylbenzyl bromide
89-92-9

2-methylbenzyl bromide

1,6,7-trihydroxy-3-((2-methylbenzyl)oxy)-9H-xanthen-9-one

1,6,7-trihydroxy-3-((2-methylbenzyl)oxy)-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;49.2%
1-bromomethyl-3-methyl-benzene
620-13-3

1-bromomethyl-3-methyl-benzene

norathyriol
3542-72-1

norathyriol

1,6,7-trihydroxy-3-((3-methylbenzyl)oxy)-9H-xanthen-9-one

1,6,7-trihydroxy-3-((3-methylbenzyl)oxy)-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;48.1%
norathyriol
3542-72-1

norathyriol

1-(Bromomethyl)-3-fluorobenzene
456-41-7

1-(Bromomethyl)-3-fluorobenzene

3-((3-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((3-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;44.8%
1-(bromomethyl)-3-chloro-2-fluorobenzene

1-(bromomethyl)-3-chloro-2-fluorobenzene

norathyriol
3542-72-1

norathyriol

3-((3-chloro-2-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((3-chloro-2-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;41.6%
o-fluorobenzyl bromide
446-48-0

o-fluorobenzyl bromide

norathyriol
3542-72-1

norathyriol

3-((2-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((2-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;36.4%
norathyriol
3542-72-1

norathyriol

1-bromomethyl-2-chlorobenzene
611-17-6

1-bromomethyl-2-chlorobenzene

3-((2-chlorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((2-chlorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;35.4%
norathyriol
3542-72-1

norathyriol

4-Fluorobenzyl bromide
459-46-1

4-Fluorobenzyl bromide

3-((4-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((4-fluorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;34.8%
norathyriol
3542-72-1

norathyriol

4-Methylbenzyl bromide
104-81-4

4-Methylbenzyl bromide

1-hydroxy-3,6,7-tris((4-methylbenzyl)oxy)-9H-xanthen-9-one

1-hydroxy-3,6,7-tris((4-methylbenzyl)oxy)-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;33.5%
norathyriol
3542-72-1

norathyriol

4-chlorobenzyl bromide
622-95-7

4-chlorobenzyl bromide

3-((4-chlorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((4-chlorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;32.8%
norathyriol
3542-72-1

norathyriol

1-bromomethyl-3-chlorobenzene
766-80-3

1-bromomethyl-3-chlorobenzene

3-((3-chlorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

3-((3-chlorobenzyl)oxy)-1,6,7-trihydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;32.8%
norathyriol
3542-72-1

norathyriol

4-chlorobenzyl bromide
622-95-7

4-chlorobenzyl bromide

3,6,7-tris((4-chlorobenzyl)oxy)-1-hydroxy-9H-xanthen-9-one

3,6,7-tris((4-chlorobenzyl)oxy)-1-hydroxy-9H-xanthen-9-one

Conditions
ConditionsYield
With sodium hydrogencarbonate; potassium iodide at 80℃; for 7h;21.6%
norathyriol
3542-72-1

norathyriol

1-hydroxy-3,6,7-trimethoxyxanthone
2054-36-6

1-hydroxy-3,6,7-trimethoxyxanthone

Conditions
ConditionsYield
With diethyl ether
norathyriol
3542-72-1

norathyriol

acetic anhydride
108-24-7

acetic anhydride

1,3,6,7-tetrahydroxyxanthone acetate
2054-37-7

1,3,6,7-tetrahydroxyxanthone acetate

Conditions
ConditionsYield
With sulfuric acid
With sodium acetate for 2h; Heating; labelled comp.; Yield given;
With pyridine for 24h;
norathyriol
3542-72-1

norathyriol

xanthene-1,3,6,7-tetraol
105904-53-8

xanthene-1,3,6,7-tetraol

Conditions
ConditionsYield
With palladium on activated charcoal; ethanol Hydrogenation;
chlorobromomethane
74-97-5

chlorobromomethane

norathyriol
3542-72-1

norathyriol

1,3-Dihydroxy-6,7-methylenedioxyxanthone
14103-14-1

1,3-Dihydroxy-6,7-methylenedioxyxanthone

Conditions
ConditionsYield
With potassium carbonate 1) acetone, reflux, 1 h, 2) reflux, 16 h; Yield given. Multistep reaction;
norathyriol
3542-72-1

norathyriol

3,5-dihydroxyphenol
108-73-6

3,5-dihydroxyphenol

Conditions
ConditionsYield
With potassium hydroxide; sodium hydroxide at 290 - 300℃; for 1h; labelled comp.;

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