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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

L(+)-Diethyl L-tartrate

Cas:87-91-2

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 L(+)-Diethyl L-Tartrate supplier in China

Cas:87-91-2

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

DIETHYL-L-TARTRATE, (+)-(RG)

Cas:87-91-2

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply Diethyl tartrate

Cas:87-91-2

Min.Order:1

Negotiable

Type:Other

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Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Diethyl tartrate

Cas:87-91-2

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

LIDE PHARMACEUTICALS LIMITED

LIDE PHARMACEUTICALS LIMITED is a professional chemicals and APIs leading manufacturer in China. Our core business line covers APIs, Intermediates, Herb extract, etc.

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Kilogram

FOB Price: $0.9 / 1.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Kilogram

FOB Price: $9.0 / 99.0

Type:Trading Company

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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

Pharmaceutical Grade CAS 87-91-2 with competitive price

Cas:87-91-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Hot Sell Factory Supply Raw Material CAS 87-91-2 ,Diethyl L-tartrate

Cas:87-91-2

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product Name L(+)-Diethyl L-tartrate Synonyms DIETHYL TARTRATE CAS: 87-91-2 MF: - MW: - EINECS: - Produc

L(+)-Diethyl L-tartrate CAS:87-91-2

Cas:87-91-2

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

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

Butanedioicacid, 2,3-dihydroxy- (2R,3R)-, 1,4-diethyl ester 87-91-2

Cas:87-91-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: L(+)-Diethyl L-tartrate CAS: 87-91-2 MF: C8H14O6 MW: 206.19 EINECS: 201-783-3 Mol File: 87-91-2.mol L(+)-Diethyl L-tartrate Structure L(+)-Diethyl L-tartrate Chemical Properties Melting point 17 °C alpha

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Leader Biochemical Group

About Our Group Since 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & c

China Biggest Factory Manufacturer Supply L(+)-Diethyl L-tartrate CAS 87-91-2

Cas:87-91-2

Min.Order:500 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Kilogram

FOB Price: $85.0 / 96.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

L(+)-Diethyl L-tartrate CAS:87-91-2 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 int

L(+)-Diethyl L-tartrate CAS:87-91-2

Cas:87-91-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Butanedioicacid, 2,3-dihydroxy- (2R,3R)-, 1,4-diethyl ester

Cas:87-91-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

CAS NO.:87-91-2

Cas:87-91-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

(+)-Diethyl L-Tartrate

Cas:87-91-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Triumph International Development Limilted

Appearance:white or light yellow crystalline powder Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:By

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

Diethyl L-tartrate

Cas:87-91-2

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

L(+)-DIETHYL L-TARTRATE

Cas:87-91-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

Diethyl-L-tartrate

Cas:87-91-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

our strengths: 1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment items accepted (Btc; MoneyGram; WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery

L(+)-Diethyl L-tartrate with lower price

Cas:87-91-2

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

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 L(+)-Diethyl L-Tartrate

Cas:87-91-2

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

SHANGHAI SYSTEAM BIOCHEM CO., LTD

We are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov

Diethyl L-tartrate

Cas:87-91-2

Min.Order:100 Gram

FOB Price: $100.0 / 2000.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

Superior quality, moderate price & quick delivery. Appearance:Colorless to light yellow liquid 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

Butanedioicacid, 2,3-dihydroxy- (2R,3R)-, 1,4-diethyl ester

Cas:87-91-2

Min.Order:1 Gram

Negotiable

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Product Name: L(+)-Diethyl L-tartrate Synonyms: 2,3-Dihydronxybutanedioicaciddiethylester;2,3-dihydroxy-[theta-(theta,theta)]-butanedioicacidiethylester;Butanedioic acid, 2,3-dihydroxy- [R-(R*,R*)]-, diethyl ester;Butanedioic acid, 2,3-dihydroxy-,

87-91-2 L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Kilogram

FOB Price: $300.0

Type:Lab/Research institutions

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

L(+)-Diethyl L-tartrate

Cas:87-91-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

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

L-(+)-diethyl tartrate

Cas:87-91-2

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Synthetic route

ethanol
64-17-5

ethanol

L-Tartaric acid
87-69-4

L-Tartaric acid

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
With thionyl chloride100%
With methanesulfonic acid at 30 - 35℃; for 12h;99%
With thionyl chloride at 0 - 50℃; for 3.5h; Temperature;96.2%
ethanol
64-17-5

ethanol

(R,R)-tartaric acid ethyl ester
608-89-9

(R,R)-tartaric acid ethyl ester

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
at 160℃;
ethyl iodide
75-03-6

ethyl iodide

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
With silver tartrate
ethanol
64-17-5

ethanol

tartaric acid
87-69-4

tartaric acid

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

diethyl Fumarate
623-91-6

diethyl Fumarate

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
With diethyl ether; dihydrogen peroxide Irradiation.mit rechts-zirkular polarisiertem UV-Licht entsteht ein schwach rechtsdrehendes Praeparat;
ethanol
64-17-5

ethanol

dibenzyl (2R,3R)-2,3-dihydroxybutanedioate
622-00-4

dibenzyl (2R,3R)-2,3-dihydroxybutanedioate

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
In various solvent(s) at 39℃; for 168h; lipase from Pseudomonas fluorescens;96.5 % Spectr.
ethanol
64-17-5

ethanol

L-Tartaric acid
87-69-4

L-Tartaric acid

dehydrocholic acid
81-23-2

dehydrocholic acid

A

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

B

3,7,12-trioxo-5β-cholan-24-oic acid ethyl ester
52718-49-7

3,7,12-trioxo-5β-cholan-24-oic acid ethyl ester

Conditions
ConditionsYield
With methanesulfonic acid for 5 - 6h; Heating / reflux;
octanol
111-87-5

octanol

C12H24Cl2O6Si2

C12H24Cl2O6Si2

A

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

B

dimethyl-bis-octyloxy-silane
18536-88-4

dimethyl-bis-octyloxy-silane

C

chloro(dimethyl)octyloxysilane
52322-14-2

chloro(dimethyl)octyloxysilane

Conditions
ConditionsYield
With gallium(III) trichloride at 20℃; for 6h; Inert atmosphere;
(+/-)-diethyl tartrate
57968-71-5

(+/-)-diethyl tartrate

A

diethyl (2S,3S)-tartrate
13811-71-7

diethyl (2S,3S)-tartrate

B

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
With (S)-aminopropyl alcohol(at)silica 1 In hexane; isopropyl alcohol at 20℃; for 1h; Purification / work up; Resolution of racemate; Inert atmosphere;A n/a
B n/a
L-Tartaric acid
87-69-4

L-Tartaric acid

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

Conditions
ConditionsYield
With hydrogenchloride In ethanol
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

dimethyl sulfate
77-78-1

dimethyl sulfate

(+)-(2R,3R)-diethyl di-O-methyltartrate
27957-93-3

(+)-(2R,3R)-diethyl di-O-methyltartrate

Conditions
ConditionsYield
With sodium hydride In diethyl ether at 0 - 20℃; Inert atmosphere;100%
With sodium hydride In diethyl ether at 0 - 20℃; Inert atmosphere;100%
With sodium hydride In diethyl ether at 0 - 20℃;100%
With sodium hydride In diethyl ether
Trimethyl orthoacetate
1445-45-0

Trimethyl orthoacetate

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

diethyl (4R)-trans-2-methoxy-2-methyl-1,3-dioxolan-4,5-dicarboxylate
134745-01-0

diethyl (4R)-trans-2-methoxy-2-methyl-1,3-dioxolan-4,5-dicarboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid In dichloromethane at 20℃; for 12h;100%
With sulfuric acid In benzene at 80℃;98%
Dimethoxymethane
109-87-5

Dimethoxymethane

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

(+)-(2R,3R)-diethyl 2,3-bismethoxymethoxybutanedioate
100449-52-3

(+)-(2R,3R)-diethyl 2,3-bismethoxymethoxybutanedioate

Conditions
ConditionsYield
With phosphorus pentaoxide In chloroform for 2.5h; Ambient temperature;100%
With phosphorus pentoxide In dichloromethane for 5h; Ambient temperature;100%
With phosphorus pentoxide In chloroform for 2h; Alkylation;97%
With phosphorus pentoxide In dichloromethane96%
With phosphorus pentoxide In dichloromethane
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

diethyl (4R,5R)-1,3,2-dioxathiolane-4,5-dicarboxylate 2-oxide
136087-36-0

diethyl (4R,5R)-1,3,2-dioxathiolane-4,5-dicarboxylate 2-oxide

Conditions
ConditionsYield
With thionyl chloride; N,N-dimethyl-formamide at 50℃; for 1h;100%
With thionyl chloride In tetrachloromethane for 2h; Heating;
With thionyl chloride; N,N-dimethyl-formamide In dichloromethane at 0 - 50℃; for 2.5h;
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

tert-butyldimethylsilyl chloride
18162-48-6

tert-butyldimethylsilyl chloride

(2R,3R)-2,3-Bis-(tert-butyl-dimethyl-silanyloxy)-succinic acid diethyl ester
124224-83-5

(2R,3R)-2,3-Bis-(tert-butyl-dimethyl-silanyloxy)-succinic acid diethyl ester

Conditions
ConditionsYield
With 1H-imidazole In N,N-dimethyl-formamide at 35℃; for 14h;100%
With 1H-imidazole In N,N-dimethyl-formamide at 60℃; for 12h;100%
With 1H-imidazole In N,N-dimethyl-formamide95%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

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

2,2-dimethoxy-propane

A

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate
59779-75-8

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate

B

(4R,5R)-2,2-Dimethyl-[1,3]dioxolane-4,5-dicarboxylic acid 4-ethyl ester 5-methyl ester

(4R,5R)-2,2-Dimethyl-[1,3]dioxolane-4,5-dicarboxylic acid 4-ethyl ester 5-methyl ester

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 8h; Heating; Title compound not separated from byproducts.;A 100%
B n/a
for 2.5h; Heating;
Dimethoxymethane
109-87-5

Dimethoxymethane

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

trans-(4R,5R)-1,3-dioxolane-4,5-dicarboxylic acid diethyl ester
21154-13-2, 60077-28-3, 70561-17-0

trans-(4R,5R)-1,3-dioxolane-4,5-dicarboxylic acid diethyl ester

Conditions
ConditionsYield
With 3 A molecular sieve; Amberlyst 15 ion-exchange resin In ethyl acetate for 24h; Heating;100%
With boron trifluoride diethyl etherate In Isopropyl acetate100%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

bis(diethyl-L-tartrateglycolato)diboron

bis(diethyl-L-tartrateglycolato)diboron

Conditions
ConditionsYield
With tetrakis(dimethylamido)diborane In toluene at 105℃; for 0.116667h;100%
1,1-dimethoxyethylene
922-69-0

1,1-dimethoxyethylene

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

C16H30O10
1092455-59-8

C16H30O10

Conditions
ConditionsYield
at 20℃; for 0.5h; Inert atmosphere; neat (no solvent);100%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

acetone
67-64-1

acetone

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate
59779-75-8

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate

Conditions
ConditionsYield
With orthoformic acid triethyl ester99%
With hydrogenchloride; orthoformic acid triethyl ester In N,N-dimethyl-formamide at 20℃; for 72h;85%
boron trifluoride diethyl etherate at 23℃; for 5.5h; protection;80%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

chloromethyl methyl ether
107-30-2

chloromethyl methyl ether

(+)-(2R,3R)-diethyl 2,3-bismethoxymethoxybutanedioate
100449-52-3

(+)-(2R,3R)-diethyl 2,3-bismethoxymethoxybutanedioate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 10h;99%
With dmap; N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; Inert atmosphere;99%
With N-ethyl-N,N-diisopropylamine In chloroform at 60℃; for 36h;79%
With N-ethyl-N,N-diisopropylamine for 48h; Ambient temperature;
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 25℃; for 18h;130 g
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

4-chlorobenzoylmethylenetriphenylphosphorane
1777-56-6

4-chlorobenzoylmethylenetriphenylphosphorane

(E)-ethyl 4-(4-chlorophenyl)-4-oxobut-2-enoate
89781-40-8

(E)-ethyl 4-(4-chlorophenyl)-4-oxobut-2-enoate

Conditions
ConditionsYield
Stage #1: diethyl (2R,3R)-tartrate With periodic acid In diethyl ether at 20 - 25℃; for 3h;
Stage #2: 4-chlorobenzoylmethylenetriphenylphosphorane In tetrahydrofuran; diethyl ether at 0 - 25℃; for 16h;
99%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

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

2,2-dimethoxy-propane

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate
59779-75-8

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 8h; Heating;98%
With toluene-4-sulfonic acid for 8h; Reflux;98%
With toluene-4-sulfonic acid97%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

butylboronic acid
4426-47-5

butylboronic acid

(4R,5S)-2-butyl-4,5-dicarboethoxy-1,3,2-diazaborolane

(4R,5S)-2-butyl-4,5-dicarboethoxy-1,3,2-diazaborolane

Conditions
ConditionsYield
In benzene equiv. amts. of tratrate and boronic acid were refluxed for 2 h with Dean-Stark trap; distn.; elem. anal.;98%
bis(cyclopentadienyl)dimethylzirconium(IV)
12636-72-5

bis(cyclopentadienyl)dimethylzirconium(IV)

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

((C5H5)2Zr(C2H5OOCCH(O)CH(O)COOC2H5))2

((C5H5)2Zr(C2H5OOCCH(O)CH(O)COOC2H5))2

Conditions
ConditionsYield
In dichloromethane byproducts: CH4; (N2 or Ar); to a soln. of dimethylzirconocene added dropwise tartrate at room temp. over a period of 0.5 h; stirred for 1 h; evapd.; washed with pentane; dried in vacuo; elem. anal.;98%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

diethyl 2,3-difluorosuccinate
868-24-6

diethyl 2,3-difluorosuccinate

Conditions
ConditionsYield
With sulfur tetrafluoride; hydrogen fluoride at 90℃; for 5h;97%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

allyl bromide
106-95-6

allyl bromide

(2R,3R)-2,3-Bis-allyloxy-succinic acid diethyl ester
65973-54-8

(2R,3R)-2,3-Bis-allyloxy-succinic acid diethyl ester

Conditions
ConditionsYield
With silver(l) oxide In diethyl ether 2 h reflux in the dark, 1-3 d stirring;97%
With 18-crown-6 ether; tetra-(n-butyl)ammonium iodide; sodium hydride In tetrahydrofuran at 0 - 25℃; for 4h; Etherification;93%
With sodium hydride In tetrahydrofuran68%
Stage #1: diethyl (2R,3R)-tartrate With sodium hydride In tetrahydrofuran at 0℃; for 1h;
Stage #2: allyl bromide With 18-crown-6 ether; tetra-(n-butyl)ammonium iodide In tetrahydrofuran at 20℃; for 1.5h;
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

2-Methoxypropene
116-11-0

2-Methoxypropene

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate
59779-75-8

diethyl (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid In dichloromethane97%
With camphor-10-sulfonic acid In toluene at 20℃; for 5h;74%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

methyl iodide
74-88-4

methyl iodide

(+)-(2R,3R)-diethyl di-O-methyltartrate
27957-93-3

(+)-(2R,3R)-diethyl di-O-methyltartrate

Conditions
ConditionsYield
With silver(l) oxide for 19h; Inert atmosphere; Schlenk technique; Reflux;96%
(i) TlOEt, benzene, (ii) /BRN= 969135/; Multistep reaction;
With silver(l) oxide
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

orthoformic acid triethyl ester
122-51-0

orthoformic acid triethyl ester

L-(R,R)-2-ethoxy-1,3-dioxolane-4,5-dicarboxylic acid diethyl ester
162491-34-1

L-(R,R)-2-ethoxy-1,3-dioxolane-4,5-dicarboxylic acid diethyl ester

Conditions
ConditionsYield
With pyridinium p-toluenesulfonate In ethanol at 130 - 140℃; for 2h;96%
With camphor-10-sulfonic acid In toluene at 95℃;95%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

1,4-Cyclohexanedione
637-88-7

1,4-Cyclohexanedione

tetraethyl (2R,3R,10R,11R)-1,4,9,12-tetraoxadispiro[4.2.48.25]tetradecane-2,3,10,11-tetracarboxylate
216373-63-6

tetraethyl (2R,3R,10R,11R)-1,4,9,12-tetraoxadispiro[4.2.48.25]tetradecane-2,3,10,11-tetracarboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid In benzene for 30h; cyclocondensation; Heating;96%
With toluene-4-sulfonic acid In toluene for 120h; Condensation; Heating;92%
With boron trifluoride diethyl etherate In ethyl acetate at 0 - 20℃;55%
With boron trifluoride diethyl etherate In ethyl acetate at 0℃;
3,3-dimethoxypentane
25636-49-1

3,3-dimethoxypentane

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

diethyl (4R,5R)-2,2-diethyl-1,3-dioxolane-4,5-dicarboxylate
68572-82-7

diethyl (4R,5R)-2,2-diethyl-1,3-dioxolane-4,5-dicarboxylate

Conditions
ConditionsYield
With 4 A molecular sieve; toluene-4-sulfonic acid In benzene for 3h; Heating;96%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

(2R,3R)-2,3-dihydroxybutanedihydrazide
76585-39-2, 80081-45-4, 80081-47-6, 80081-49-8, 54789-92-3

(2R,3R)-2,3-dihydroxybutanedihydrazide

Conditions
ConditionsYield
With hydrazine In ethanol; water Heating / reflux;96%
With hydrazine hydrate In ethanol for 7h; Reflux;88%
With hydrazine hydrate In ethanol for 2h; Reflux;87%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

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

2,2-dimethoxy-propane

(4S,5S)-diethyl 2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate
73346-73-3

(4S,5S)-diethyl 2,2-dimethyl-1,3-dioxolane-4,5-dicarboxylate

Conditions
ConditionsYield
With toluene-4-sulfonic acid; orthoformic acid triethyl ester at 50℃; for 9h; Temperature; Reagent/catalyst; Reflux;95.5%
toluene-4-sulfonic acid In benzene for 1h; Heating;89%
With camphor-10-sulfonic acid
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

benzylamine
100-46-9

benzylamine

(2R,3R)-N1,N4-dibenzyl-2,3-dihydroxysuccinamide
88393-56-0

(2R,3R)-N1,N4-dibenzyl-2,3-dihydroxysuccinamide

Conditions
ConditionsYield
With potassium carbonate In methanol for 7h; Heating;95.3%
With potassium carbonate In methanol Inert atmosphere; Reflux;90%
With potassium carbonate In methanol at 80℃; for 15h; Inert atmosphere;62.4%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

dibromotriphenylphosphorane
1034-39-5

dibromotriphenylphosphorane

(4R,5R)-2,2,2-Triphenyl-2λ5-[1,3,2]dioxaphospholane-4,5-dicarboxylic acid diethyl ester

(4R,5R)-2,2,2-Triphenyl-2λ5-[1,3,2]dioxaphospholane-4,5-dicarboxylic acid diethyl ester

Conditions
ConditionsYield
With triethylamine In toluene Cyclization;95%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

ethyl chlorocarbonylacetate
36239-09-5

ethyl chlorocarbonylacetate

1,1'-[(R,R)-1,2-bis(ethoxycarbonyl)ethane-1,2-diyl] 3,3'-diethyl bis(malonate)

1,1'-[(R,R)-1,2-bis(ethoxycarbonyl)ethane-1,2-diyl] 3,3'-diethyl bis(malonate)

Conditions
ConditionsYield
With pyridine In tetrahydrofuran; dichloromethane at 20℃; for 12h;95%
methanol
67-56-1

methanol

diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

butanedioic acid, monoethyl ester
1070-34-4

butanedioic acid, monoethyl ester

Conditions
ConditionsYield
With potassium perrhenate; phosphoric acid; palladium on activated charcoal; hydrogen; pyrographite at 150℃; under 3878.71 Torr;95%
diethyl (2R,3R)-tartrate
87-91-2

diethyl (2R,3R)-tartrate

chloro-diphenylphosphine
1079-66-9

chloro-diphenylphosphine

(2R,3R)-2,3-O-Bis(diphenylphosphinoxy)weinsaeurediethylester
102139-89-9

(2R,3R)-2,3-O-Bis(diphenylphosphinoxy)weinsaeurediethylester

Conditions
ConditionsYield
With pyridine In diethyl ether at 20℃; for 4h;94%
With dmap In toluene at 20℃; for 3h; Substitution;
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