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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

2,3-Dimethoxy-1,3-butadiene Manufacturer/High quality/Best price/In stock

Cas:3588-31-6

Min.Order:1 Kilogram

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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

Manufacturer supply CAS 3588-31-6 with best quality

Cas:3588-31-6

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

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Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you 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 Specializ

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

Min.Order:1 Gram

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Qingdao Beluga Import and Export Co., LTD

2,3-Dimethoxy-1,3-butadiene CAS:3588-31-6 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 organi

2,3-Dimethoxy-1,3-butadiene CAS:3588-31-6

Cas:3588-31-6

Min.Order:1 Gram

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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

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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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

2,3-Dimethoxy-1,3-butadiene

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HANGZHOU YUNUO CHEMICAL CO.,LTD

superior quality moderate price & quick delivery Appearance:powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Used to make other chemi

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

Min.Order:1 Kilogram

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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

2,3-Dimethoxy-1,3-butadiene

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Shaanxi Cuicheng Biomedical Technology Co., Ltd.

Why Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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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

2,3-Dimethoxy-1,3-butadiene Manufacturer

Cas:3588-31-6

Min.Order:10 Gram

FOB Price: $100.0

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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

2,3-Dimethoxy-1,3-butadiene

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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

2,3-dimethoxy-1,3-butadiene

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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.

2,3-Dimethoxy-1,3-butadiene

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Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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Antimex Chemical Limied

2,3-Dimethoxy-1,3-butadieneAppearance:detailed see specifications Storage:Keep away of light, cool place Package:25kg/drum;200kg/drum Application:It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agrochemica

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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DB BIOTECH CO., LTD

best seller Application:API

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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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:light yellow liquid Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as pr

2,3-Dimethoxy-1,3-butadiene

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Hangzhou Fandachem Co.,Ltd

2,3-Dimethoxy-1,3-butadiene cas 3588-31-6Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

2,3-Dimethoxy-1,3-butadiene cas 3588-31-6

Cas:3588-31-6

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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

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

3588-31-6

Cas:3588-31-6

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Hebei Muhuang Technology Co., Ltd

best seller Application:API

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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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

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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LEAP CHEM Co., Ltd.

Best Seller, High Quality, Competitive Price, Fast Delivery, Quick ResponseAppearance:powder, or liquid Storage:Stored in room temperature, ventilated place Package:Bottle, barrel, cargo, container, etc. Application:Pharmaceuticals, intermediates, AP

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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HuBei Ipure Biotech CO.,ltd

HuBei ipure is a diversified product production and operation enterprise, with API, pharma intermediates, and other fine chemicals as well as R&D and pigments development and sales as one of the large enterprises, with more than 130 acres of pl

2,3-Dimethoxy-1,3-butadiene Manufacturer/High quality/Best price/In stock

Cas:3588-31-6

Min.Order:1 Gram

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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

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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Jinan Great Chemical Co.,Ltd.

Molecular Formula C6H10O2 Molecular Weight 114.14 CAS Registry Number 3588-31-6 Name2,3-Dimethoxy-1,3-butadieneMolecular S…

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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Nanjing Raymon Biotech Co., Ltd.

2,3-Dimethoxy-1,3-butadiene Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By courier like DHL or Fedx. Port:Shanghai/Shenzhen

2,3-Dimethoxy-1,3-butadiene

Cas:3588-31-6

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Finetech Industry Limited

High Quality Best Price Storage:Store in dry, dark and ventilated place Application:Chemical Synthesis Intermediate

FT-0728944

Cas:3588-31-6

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Hebei Ruishun Trade Co.,Ltd

Supply top quality products with a reasonable price Application:api

3588-31-6

Cas:3588-31-6

Min.Order:0

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Debye Scientific

Debyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen

2,3-dimethoxy-1,3-butadiene

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Synthetic route

dimethylglyoxal
431-03-8

dimethylglyoxal

trimethyl orthoformate
149-73-5

trimethyl orthoformate

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

Conditions
ConditionsYield
With sulfuric acid In methanol for 12h; Heating;73%
With sulfuric acid In methanol for 10h; Reflux;68%
Stage #1: dimethylglyoxal; trimethyl orthoformate With sulfuric acid In methanol for 10h; Reflux;
Stage #2: With ammonium dihydrogen phosphate; hydroquinone In methanol at 100 - 110℃;
68%
methanol
67-56-1

methanol

dimethylglyoxal
431-03-8

dimethylglyoxal

trimethyl orthoformate
149-73-5

trimethyl orthoformate

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

Conditions
ConditionsYield
sulfuric acid for 10h; Heating / reflux;68%
meso-1,4-diiodo-2,3-dimethoxy-butane
58313-64-7

meso-1,4-diiodo-2,3-dimethoxy-butane

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

Conditions
ConditionsYield
With sodium hydroxide; ethoxyethoxyethanol at 200℃;
1,4-diiodo-2,3-dimethoxy-butane
6963-02-6

1,4-diiodo-2,3-dimethoxy-butane

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

Conditions
ConditionsYield
With sodium hydroxide at 160℃;
meso-1,4-diiodo-2,3-dimethoxy-butane
58313-64-7

meso-1,4-diiodo-2,3-dimethoxy-butane

ethoxyethoxyethanol
111-90-0

ethoxyethoxyethanol

concentrated NaOH

concentrated NaOH

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

Conditions
ConditionsYield
at 200℃;
diethyl diazodicarboxylate
4143-61-7

diethyl diazodicarboxylate

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

diethyl 4,5-dimethoxy-1,2,3,6-tetrahydro-1,2-pyridazincarboxylate

diethyl 4,5-dimethoxy-1,2,3,6-tetrahydro-1,2-pyridazincarboxylate

Conditions
ConditionsYield
With lanthanum(lll) triflate at 20℃; for 0.5h; hetero-Diels-Alder reaction;98%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

diazodimedone
1807-68-7

diazodimedone

2-methoxy-2-(1-methoxyvinyl)-6,6-dimethyl-3,5,6,7-tetrahydro-2H-benzofuran-4-one

2-methoxy-2-(1-methoxyvinyl)-6,6-dimethyl-3,5,6,7-tetrahydro-2H-benzofuran-4-one

Conditions
ConditionsYield
With rhodium(II) pivalate at 20℃; for 3h;98%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2-diazo-1H-phenalene-1,3(2H)-dione
18931-19-6

2-diazo-1H-phenalene-1,3(2H)-dione

9-methoxy-9-(1-methoxyvinyl)-8,9-dihydrophenaleno[1,2-b]furan-7-one

9-methoxy-9-(1-methoxyvinyl)-8,9-dihydrophenaleno[1,2-b]furan-7-one

Conditions
ConditionsYield
With rhodium(II) pivalate at 20℃; for 3h;98%
5-nitro[2.2]paracyclophanepyran-6-one
872221-35-7

5-nitro[2.2]paracyclophanepyran-6-one

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

C25H25NO6

C25H25NO6

Conditions
ConditionsYield
With hydroquinone In dichloromethane at 50℃; under 6000600 Torr; for 20h; Diels-Alder reaction;98%
(4,4-dimethyl-2,6-dioxo-cyclohexyl)-phenyl-iodonium betaine
35024-12-5

(4,4-dimethyl-2,6-dioxo-cyclohexyl)-phenyl-iodonium betaine

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2-methoxy-2-(1-methoxyvinyl)-6,6-dimethyl-3,5,6,7-tetrahydro-2H-benzofuran-4-one

2-methoxy-2-(1-methoxyvinyl)-6,6-dimethyl-3,5,6,7-tetrahydro-2H-benzofuran-4-one

Conditions
ConditionsYield
rhodium(II) pivalate at 20℃; for 12h;90%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

selenobenzophenone
119579-98-5

selenobenzophenone

3,6-dihydro-4,5-dimethoxy-2,2-diphenyl-2H-selenapyran
128632-63-3

3,6-dihydro-4,5-dimethoxy-2,2-diphenyl-2H-selenapyran

Conditions
ConditionsYield
Ambient temperature;88%
In toluene for 24h; Ambient temperature; Yield given;
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2,2,4,4-tetraphenyl-1,3-diselenacyclobutane
128632-60-0

2,2,4,4-tetraphenyl-1,3-diselenacyclobutane

3,6-dihydro-4,5-dimethoxy-2,2-diphenyl-2H-selenapyran
128632-63-3

3,6-dihydro-4,5-dimethoxy-2,2-diphenyl-2H-selenapyran

Conditions
ConditionsYield
In toluene for 6h; Ambient temperature;88%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2-((E)-1-Acetyl-2-hydroxy-propenylsulfanyl)-isoindole-1,3-dione
152420-82-1

2-((E)-1-Acetyl-2-hydroxy-propenylsulfanyl)-isoindole-1,3-dione

5,6-dihydro-3,4-dimethoxy-6,6-diacetyl-2H-thiopyran

5,6-dihydro-3,4-dimethoxy-6,6-diacetyl-2H-thiopyran

Conditions
ConditionsYield
With pyridine In chloroform Ambient temperature;88%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

3-diazobenzopyran-2,4(3H)-dione
5186-54-9

3-diazobenzopyran-2,4(3H)-dione

2-methoxy-2-(1-methoxyvinyl)-2,3-dihydrofuro[3,2-c]chromen-4-one

2-methoxy-2-(1-methoxyvinyl)-2,3-dihydrofuro[3,2-c]chromen-4-one

Conditions
ConditionsYield
With rhodium(II) pivalate at 60℃; for 3h;87%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

1-methylquinolin-2(1H)-one-4-carbaldehyde
15112-98-8

1-methylquinolin-2(1H)-one-4-carbaldehyde

cis-10a-formyl-5,6,6a,7,10,10a-hexahydro-8,9-dimethoxy-5-methylphenanthridin-6-one

cis-10a-formyl-5,6,6a,7,10,10a-hexahydro-8,9-dimethoxy-5-methylphenanthridin-6-one

Conditions
ConditionsYield
In o-xylene at 200℃; for 72h; Diels-Alder reaction;86%
5,8-quinolinedione
10470-83-4

5,8-quinolinedione

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

6,7-dimethoxy-1-azaanthracene-9,10-dione
101402-87-3

6,7-dimethoxy-1-azaanthracene-9,10-dione

Conditions
ConditionsYield
With sodium hydroxide In methanol; dichloromethane for 0.5h; Ambient temperature;85%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

C18H22B2N2O2

C18H22B2N2O2

2-(3,4-dimethoxy-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine

2-(3,4-dimethoxy-1-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohex-3-en-1-yl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine

Conditions
ConditionsYield
In toluene at 180℃; for 12h; Diels-Alder Cycloaddition; Sealed tube; Inert atmosphere;85%
glycolic Acid
79-14-1

glycolic Acid

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

(+/-)-5,6-dimethoxy-5,6-dimethyl-[1,4]dioxane-2-one

(+/-)-5,6-dimethoxy-5,6-dimethyl-[1,4]dioxane-2-one

Conditions
ConditionsYield
With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 3h;83%
With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 3h;83%
With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 3h;83%
With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 3h;83%
With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 3h;83%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2-methoxycarbonyl-1,4-naphthoquinone
83575-14-8

2-methoxycarbonyl-1,4-naphthoquinone

methyl 5-hydroxy-2-methoxy-2-(1-methoxyvinyl)-2,3-dihydronaphtho[1,2-b]furan-4-carboxylate
1452153-42-2

methyl 5-hydroxy-2-methoxy-2-(1-methoxyvinyl)-2,3-dihydronaphtho[1,2-b]furan-4-carboxylate

Conditions
ConditionsYield
With ammonium cerium (IV) nitrate In acetonitrile at 20℃; for 0.333333h;81%
With ammonium cerium (IV) nitrate In acetonitrile at 20℃; for 0.333333h;81%
3-nitrocoumarin
28448-04-6

3-nitrocoumarin

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

8,9-dimethoxy-6a-nitro-6a,7,10,10a-tetrahydro-6H-benzo[c]chromen-6-one

8,9-dimethoxy-6a-nitro-6a,7,10,10a-tetrahydro-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
In 1,2-dichloro-ethane at 90℃; for 6h; Diels-Alder reaction;80%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

4-Fluoronitrobenzene
350-46-9

4-Fluoronitrobenzene

2-(4-fluorophenyl)-4,5-dimethoxy-3,6-dihydro-2H-[1,2]-oxazine

2-(4-fluorophenyl)-4,5-dimethoxy-3,6-dihydro-2H-[1,2]-oxazine

Conditions
ConditionsYield
With dichloro bis(acetonitrile) palladium(II); 1,10-Phenanthroline; phenyl formate; triethylamine In acetonitrile at 140℃; for 4h; Diels-Alder Cycloaddition; Inert atmosphere; Sealed tube; Schlenk technique;79%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

[(C5H5)Re(NO)(triphenylphosphite)(SCHC6H5)] hexafluorophosphate

[(C5H5)Re(NO)(triphenylphosphite)(SCHC6H5)] hexafluorophosphate

[(C5H5)Re(NO)(triphenylphosphite)(SC5H5(C6H5)(OCH3)2)] hexafluorophosphate

[(C5H5)Re(NO)(triphenylphosphite)(SC5H5(C6H5)(OCH3)2)] hexafluorophosphate

Conditions
ConditionsYield
In dichloromethane N2 atmosphere, 20°C; concn. to dryness, recrystn. (CH2Cl2/pentane), 24% de; elem. anal.;78%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

(E)-1,4-Bis-(4-tert-butyl-phenyl)-but-2-ene-1,4-dione

(E)-1,4-Bis-(4-tert-butyl-phenyl)-but-2-ene-1,4-dione

[6-(4-tert-Butyl-benzoyl)-3,4-dimethoxy-cyclohex-3-enyl]-(4-tert-butyl-phenyl)-methanone

[6-(4-tert-Butyl-benzoyl)-3,4-dimethoxy-cyclohex-3-enyl]-(4-tert-butyl-phenyl)-methanone

Conditions
ConditionsYield
75%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

3,4-dichloro-6-fluoro-2H-chromen-2-one

3,4-dichloro-6-fluoro-2H-chromen-2-one

2-fluoro-8,9-dimethoxy-6H-benzo[c]chromen-6-one
1493784-07-8

2-fluoro-8,9-dimethoxy-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; 3,4-dichloro-6-fluoro-2H-chromen-2-one In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
74%
Stage #1: 2,3-dimethoxy-1,3-butadiene; 3,4-dichloro-6-fluoro-2H-chromen-2-one In benzene for 5h; UV-irradiation;
Stage #2: With silica gel at 100℃; for 8.5h; Darkness;
Stage #3: In acetone for 7h; UV-irradiation;
73.8%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

3,4-dichloro-8-phenyl-2H-chromen-2-one

3,4-dichloro-8-phenyl-2H-chromen-2-one

8,9-dimethoxy-4-phenyl-6H-benzo[c]chromen-6-one

8,9-dimethoxy-4-phenyl-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; 3,4-dichloro-8-phenyl-2H-chromen-2-one In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
74%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

glycerol
56-81-5

glycerol

(2R*,3R*,6S*)-2,3,6,7-Tetrahydro-3-methoxy-2,3-dimethyl-5H-2,6-epoxy-1,4-dioxepine

(2R*,3R*,6S*)-2,3,6,7-Tetrahydro-3-methoxy-2,3-dimethyl-5H-2,6-epoxy-1,4-dioxepine

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; glycerol With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 24h;
Stage #2: With boron trifluoride diethyl etherate In dichloromethane at 20℃;
73%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2-((E)-1-Acetyl-2-hydroxy-propenylsulfanyl)-isoindole-1,3-dione
152420-82-1

2-((E)-1-Acetyl-2-hydroxy-propenylsulfanyl)-isoindole-1,3-dione

1-(4a,7,8,8a-tetrahydro-2-methyl-4a,8a-dimethoxy-7,7-diacetyl-5H-thiopyrano<2,3-c><1,4>oxathiin-3-yl)ethanone

1-(4a,7,8,8a-tetrahydro-2-methyl-4a,8a-dimethoxy-7,7-diacetyl-5H-thiopyrano<2,3-c><1,4>oxathiin-3-yl)ethanone

Conditions
ConditionsYield
With pyridine In chloroform Ambient temperature;72%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

3,4-dichloro-6-phenyl-2H-chromen-2-one

3,4-dichloro-6-phenyl-2H-chromen-2-one

8,9-dimethoxy-2-phenyl-6H-benzo[c]chromen-6-one

8,9-dimethoxy-2-phenyl-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; 3,4-dichloro-6-phenyl-2H-chromen-2-one In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
72%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

2,2'-(ethene-1,1-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)
339166-89-1

2,2'-(ethene-1,1-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2,2'-(3,4-dimethoxycyclohex-3-ene-1,1-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

2,2'-(3,4-dimethoxycyclohex-3-ene-1,1-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

Conditions
ConditionsYield
In toluene at 180℃; for 12h; Diels-Alder Cycloaddition; Sealed tube; Inert atmosphere;72%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

3,4,6-trichloro-2H-chromen-2-one
5196-72-5

3,4,6-trichloro-2H-chromen-2-one

2-chloro-8,9-dimethoxy-6H-benzo[c]chromen-6-one

2-chloro-8,9-dimethoxy-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; 3,4,6-trichloro-2H-chromen-2-one In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
71%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

6-bromo-3,4-dichloro-2H-chromen-2-one
63795-99-3

6-bromo-3,4-dichloro-2H-chromen-2-one

2-bromo-8,9-dimethoxy-6H-benzo[c]chromen-6-one

2-bromo-8,9-dimethoxy-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; 6-bromo-3,4-dichloro-2H-chromen-2-one In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
71%
3,4-dichloro-6-methyl-2H-chromen-2-one
15736-24-0

3,4-dichloro-6-methyl-2H-chromen-2-one

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

8,9-dimethoxy-2-methyl-6H-benzo[c]chromen-6-one
129194-48-5

8,9-dimethoxy-2-methyl-6H-benzo[c]chromen-6-one

Conditions
ConditionsYield
Stage #1: 3,4-dichloro-6-methyl-2H-chromen-2-one; 2,3-dimethoxy-1,3-butadiene In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
71%
3,4-dichloro-2H-chromen-2-one
5117-56-6

3,4-dichloro-2H-chromen-2-one

2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

8,9-dimethoxy-6H-benzo[b]chromin-6-one

8,9-dimethoxy-6H-benzo[b]chromin-6-one

Conditions
ConditionsYield
Stage #1: 3,4-dichloro-2H-chromen-2-one; 2,3-dimethoxy-1,3-butadiene In benzene for 4h; Diels-Alder Cycloaddition; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h;
Stage #3: In acetone for 9h; UV-irradiation;
71%
Stage #1: 3,4-dichloro-2H-chromen-2-one; 2,3-dimethoxy-1,3-butadiene In benzene for 5h; UV-irradiation;
Stage #2: With silica gel at 100℃; for 4h; Darkness;
Stage #3: In acetone for 5h; UV-irradiation;
52.3%
2,3-dimethoxy-1,3-butadiene
3588-31-6

2,3-dimethoxy-1,3-butadiene

dimethyl L-tartrate
608-68-4

dimethyl L-tartrate

(2R,3R,5R,6R)-5,6-Dimethoxy-5-methyl-[1,4]dioxane-2,3-dicarboxylic acid dimethyl ester

(2R,3R,5R,6R)-5,6-Dimethoxy-5-methyl-[1,4]dioxane-2,3-dicarboxylic acid dimethyl ester

Conditions
ConditionsYield
Stage #1: 2,3-dimethoxy-1,3-butadiene; dimethyl L-tartrate With triphenylphosphine hydrobromide In dichloromethane at 20℃; for 3h;
Stage #2: With boron trifluoride diethyl etherate In dichloromethane at 20℃;
70%

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