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hangzhou verychem science and technology co.ltd

Hangzhou Verychem Science And Technology Co. Ltd. was set up in year 2004, it’s a young but fast growing company. In the twelve years history, it invested two pharmaceutical raw material production plants, one researching company, and several

Dimethyl 1,3-acetonedicarboxylate, manufacturer,99%min

Cas:1830-54-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

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 Dimethyl 1,3-Acetonedicarboxylate supplier in China

Cas:1830-54-2

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Hefei TNJ chemical industry co.,ltd

CAS number: 1830-54-2 EINECS number: 217-385-8 Formula: C7H10O5 Molecular weight: 174.1513 Density: 1.175 g/cm3 Boiling point: 262.1 ° C at 760 mmHg Flash point: 86.8 ° C Water-soluble: approx. 120 g/L (20 °C) The st

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:20 Kilogram

Negotiable

Type:Trading Company

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 Dimethyl 3-oxoglutarate

Cas:1830-54-2

Min.Order:1

Negotiable

Type:Other

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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

High Quality Oled CAS 1830-54-2 Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm

Dimethyl 1,3-acetonedicarboxylate, manufacturer,99%min CAS NO.1830-54-2

Cas:1830-54-2

Min.Order:1 Metric Ton

FOB Price: $1.0 / 3.0

Type:Trading Company

inquiry

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

β-Ketoglutaric acid dimethyl ester

Cas:1830-54-2

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Jinan Finer Chemical Co., Ltd

Product Description Product website: http://www.finerchem.com/pro01en/id/1352.html Product Name Dimethyl 1,3-acetonedicarboxylate

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Gram

FOB Price: $22.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM--1830-54-2--Dimethyl 1,3-acetonedicarboxylate in stock 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 established stable busin

TIANFUCHEM--1830-54-2--Dimethyl 1,3-acetonedicarboxylate in stock

Cas:1830-54-2

Min.Order:1 Metric Ton

FOB Price: $2000.0

Type:Lab/Research institutions

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.

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Kilogram

FOB Price: $0.9 / 1.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

Dimethyl 1,3-acetonedicarboxylate CAS 1830-54-2

Cas:1830-54-2

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

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

Chinese Standard CAS 1830-54-2 with fast shipping

Cas:1830-54-2

Min.Order:10 Gram

FOB Price: $146.0 / 176.0

Type:Trading Company

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 email in t

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Sinotech Import&Export Corporation

English name Dimethyl 1,3-acetonedicarboxylate CAS RN 1830-54-2 EINECS 217-385-8 Molecular formula C7H10O5 Molecular weight 174.1513 Appearance:Colorless liquid Storage: Preserve in we

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

inquiry

Hubei Langyou International Trading Co., Ltd

1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:white or off-white powder Storage:Store in sealed containers

DIMETHYL 1,3-ACETONEDICARBOXYLATE CAS 1830-54-2

Cas:1830-54-2

Min.Order:100 Gram

Negotiable

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

Dimethyl 1,3-acetonedicarboxylate 1830-54-2

Cas:1830-54-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

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

1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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 present

Dimethyl 1,3-acetonedicarboxylate CAS NO.: 1830-54-2

Cas:1830-54-2

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Beluga chemical professional supply High quality Dimethyl 3-oxoglutarate CAS 1830-54-2 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research capabilities. 2. Made i

High quality Dimethyl 3-oxoglutarate CAS 1830-54-2

Cas:1830-54-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Kilogram

FOB Price: $80.0 / 100.0

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

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

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

Dimethyl 1,3-Acetonedicarboxylate

Cas:1830-54-2

Min.Order:0

Negotiable

Type:Manufacturers

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

Dimethyl-1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

DIMETHYL-1,3-ACETONEDICARBOXYLATE

Cas:1830-54-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

Dimethyl acetone-1,3-dicarboxylate

Cas:1830-54-2

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

advantage: 1. The best price, satisfactory quality; 2. customers have the right to choose the delivery of parcels (EMS, DHL, FedEx, UPS); 3. customers have the right to choose from the recent effective packaging methods of their products packaging

Manufacturer/High quality Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

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

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Hefei Zhaobo Technology Co., Ltd.

Our Advantages Production: Advanced chemical equipment with years of experience.Staffs for producing various extract products. Quality Control:A complete set of Testing Professional and Analysis Equipment ensures the Quality Requirements and Speci

Dimethyl 1,3-acetonedicarboxylate CAS 1830-54-2

Cas:1830-54-2

Min.Order:1 Kilogram

FOB Price: $150.0 / 180.0

Type:Trading Company

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

Dimethyl 1,3-acetonedicarboxylate

Cas:1830-54-2

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Synthetic route

Malonic acid monomethyl ester
16695-14-0

Malonic acid monomethyl ester

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With hydrogenchloride; 1,1'-carbonyldiimidazole In tetrahydrofuran; ethyl acetate94.3%
With 1,1'-carbonyldiimidazole In N,N-dimethyl-formamide Yield given;
methanol
67-56-1

methanol

citric acid
77-92-9

citric acid

A

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

B

dimethyl 2-methoxypropene-1,3-dicarboxylate
100009-70-9

dimethyl 2-methoxypropene-1,3-dicarboxylate

C

trimethyl aconitate
20820-77-3

trimethyl aconitate

D

trimethyl citrate
1587-20-8

trimethyl citrate

E

acetoacetic acid methyl ester
105-45-3

acetoacetic acid methyl ester

Conditions
ConditionsYield
Stage #1: citric acid With chlorosulfonic acid In dichloromethane at 10 - 15℃; for 5 - 6h;
Stage #2: methanol In dichloromethane at 3 - 35℃; for 2h; Conversion of starting material;
A 87.3%
B n/a
C n/a
D n/a
E n/a
methanol
67-56-1

methanol

acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With hydrogenchloride; sulfuric acid; sodium chloride at 36℃; for 3.5h;70.3%
With hydrogenchloride
With sulfuric acid
With fuming sulphuric acid; citric acid
citric acid
77-92-9

citric acid

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With sulfuric acid; sulfur trioxide Behandeln des Reaktionsgemisches mit Methanol.;
acetoacetic acid methyl ester
105-45-3

acetoacetic acid methyl ester

carbonic acid dimethyl ester
616-38-6

carbonic acid dimethyl ester

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With lithium diisopropyl amide In tetrahydrofuran; hexane at -45℃; 1.) 30 min, 2.) 90 min;
methanol
67-56-1

methanol

citric acid
77-92-9

citric acid

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With sulfuric acid 1.) 20-25 deg C, 3 h; 45 deg C, 6 h, 2.) 35-40 deg C, 1 h; Yield given. Multistep reaction;
methanol
67-56-1

methanol

4-oxy-6-methoxy-pyrone-(2)

4-oxy-6-methoxy-pyrone-(2)

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

citric acid-1,3-dimethyl ester

citric acid-1,3-dimethyl ester

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With chromium(VI) oxide; sulfuric acid; toluene at 65℃;
methyl 3-(dicyanomethylene)-5-hydroxy-5-methoxy-4-pentenoate morpholine salt

methyl 3-(dicyanomethylene)-5-hydroxy-5-methoxy-4-pentenoate morpholine salt

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

Conditions
ConditionsYield
With sulfur In methanol for 2h; Heating / reflux; Industry scale;
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

methyl iodide
74-88-4

methyl iodide

dimethyl 1,3-dimethyl-1,3-acetonedicarboxylate
214116-49-1

dimethyl 1,3-dimethyl-1,3-acetonedicarboxylate

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran at 45 - 60℃; for 1h;100%
With potassium carbonate In tetrahydrofuran at 27℃; for 16h; Cooling with ice;86%
With methanol; sodium
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

(R)-Phenylglycinol
56613-80-0

(R)-Phenylglycinol

(Z)-3-((R)-2-Hydroxy-1-phenyl-ethylamino)-pent-2-enedioic acid dimethyl ester
871331-01-0

(Z)-3-((R)-2-Hydroxy-1-phenyl-ethylamino)-pent-2-enedioic acid dimethyl ester

Conditions
ConditionsYield
In toluene for 48h; Heating;100%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

4-bromo-2,3-bis(bromomethyl)-biphenyl
1338796-83-0

4-bromo-2,3-bis(bromomethyl)-biphenyl

dimethyl 1-bromo-4-phenyl-7-oxo-5,6,8,9-tetrahydro-benzocycloheptene-6,8-dicarboxylate
1338796-85-2

dimethyl 1-bromo-4-phenyl-7-oxo-5,6,8,9-tetrahydro-benzocycloheptene-6,8-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; sodium hydrogencarbonate In dichloromethane; water at 40℃; for 16h; Inert atmosphere;100%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

1,2-bis(bromomethyl)naphthalene
59882-98-3

1,2-bis(bromomethyl)naphthalene

dimethyl 9-oxo-8,9,10,11-tetrahydro-7H-cyclohepta[a]naphthalene-8,10-dicarboxylate
1338796-87-4

dimethyl 9-oxo-8,9,10,11-tetrahydro-7H-cyclohepta[a]naphthalene-8,10-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; sodium hydrogencarbonate In dichloromethane; water at 40℃; for 16h; Inert atmosphere;100%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

1-bromo-2,3-bis(bromomethyl)benzene
127168-82-5

1-bromo-2,3-bis(bromomethyl)benzene

dimethyl 1-bromo-7-oxo-5,6,8,9-tetrahydro-benzocycloheptene-6,8-dicarboxylate
1280225-88-8

dimethyl 1-bromo-7-oxo-5,6,8,9-tetrahydro-benzocycloheptene-6,8-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; sodium hydrogencarbonate In dichloromethane; water at 40℃; for 6h; Inert atmosphere;100%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

1,4-dibromo-2,3-bis(dibromomethyl)benzene

1,4-dibromo-2,3-bis(dibromomethyl)benzene

dimethyl 1,4-dibromo-7-oxo-5,6,8,9-tetrahydro-benzocycloheptene-6,8-dicarboxylate
1338796-86-3

dimethyl 1,4-dibromo-7-oxo-5,6,8,9-tetrahydro-benzocycloheptene-6,8-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; sodium hydrogencarbonate In dichloromethane; water at 40℃; for 16h; Inert atmosphere;100%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

1,3-benzothiazol-2-ylhydrazine
615-21-4

1,3-benzothiazol-2-ylhydrazine

methyl 2-(1-(benzo[d]thiazol-2-yl)-5-hydroxy-1H-pyrazol-3-yl)acetate
523992-06-5

methyl 2-(1-(benzo[d]thiazol-2-yl)-5-hydroxy-1H-pyrazol-3-yl)acetate

Conditions
ConditionsYield
In toluene at 110℃;97%
In benzene for 8h; Reflux;
chloro-trimethyl-silane
75-77-4

chloro-trimethyl-silane

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

dimethyl 3-((trimethylsilyl)oxy)pent-2-enedioate
38109-74-9

dimethyl 3-((trimethylsilyl)oxy)pent-2-enedioate

Conditions
ConditionsYield
With triethylamine In benzene at 20 - 25℃;97%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

dimethyl 3-hydroxypentanedioate
7250-55-7

dimethyl 3-hydroxypentanedioate

Conditions
ConditionsYield
With sodium tetrahydroborate; citric acid In methanol at 20℃; for 24h; Inert atmosphere; chemoselective reaction;96%
With sodium tetrahydroborate In methanol at 0 - 20℃; for 24h; Time;94%
With aluminum oxide; copper(l) iodide; hydrogen; zinc(II) oxide In methanol at 50℃; under 7500.75 Torr; Autoclave;89.5%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

tert-butylimine of dimethylacrylaldehyde
56637-64-0

tert-butylimine of dimethylacrylaldehyde

3-hydroxy-2,4,6-tris(methoxycarbonyl)-3-[(methoxycarbonyl)methyl]-5-(2-methyl-1-propenyl)cyclohexanone

3-hydroxy-2,4,6-tris(methoxycarbonyl)-3-[(methoxycarbonyl)methyl]-5-(2-methyl-1-propenyl)cyclohexanone

Conditions
ConditionsYield
With lithium iodide In 1,2-dimethoxyethane for 24h; Ambient temperature;96%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

N-benzyl-(3-methylbut-2-enylidene)amine
111865-48-6

N-benzyl-(3-methylbut-2-enylidene)amine

3-hydroxy-2,4,6-tris(methoxycarbonyl)-3-[(methoxycarbonyl)methyl]-5-(2-methyl-1-propenyl)cyclohexanone

3-hydroxy-2,4,6-tris(methoxycarbonyl)-3-[(methoxycarbonyl)methyl]-5-(2-methyl-1-propenyl)cyclohexanone

Conditions
ConditionsYield
With lithium iodide In 1,2-dimethoxyethane for 24h; Ambient temperature;96%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

benzil
134-81-6

benzil

2,5-bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone
16691-79-5

2,5-bis(methoxycarbonyl)-3,4-diphenylcyclopentadienone

Conditions
ConditionsYield
Stage #1: 3-oxopentanedioic acid dimethyl ester; benzil With potassium hydroxide In ethanol
Stage #2: With acetic anhydride In acetic acid
96%
Stage #1: 3-oxopentanedioic acid dimethyl ester; benzil With potassium hydroxide In methanol; water
Stage #2: With sulfuric acid; acetic anhydride
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

3,3-dimethyl acrylaldehyde
107-86-8

3,3-dimethyl acrylaldehyde

3-hydroxy-2,4,6-tris(methoxycarbonyl)-3-[(methoxycarbonyl)methyl]-5-(2-methyl-1-propenyl)cyclohexanone

3-hydroxy-2,4,6-tris(methoxycarbonyl)-3-[(methoxycarbonyl)methyl]-5-(2-methyl-1-propenyl)cyclohexanone

Conditions
ConditionsYield
With sodium In methanol at 20℃;96%
tetrakis(triphenylphosphine) palladium(0)
14221-01-3

tetrakis(triphenylphosphine) palladium(0)

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

2,4-bis(methoxycarbonyl)-1,1-bis(triphenylphosphine)palladacyclobutan-3-one-water(1/1)

2,4-bis(methoxycarbonyl)-1,1-bis(triphenylphosphine)palladacyclobutan-3-one-water(1/1)

Conditions
ConditionsYield
With air; H2O In benzene mixt. of educts in C6H6 stirred in open air for 16 h; Et2O added, solid recrystd. from CH2Cl2-light petroleum, dried in vac. (0.4 mmHg) at 40°C; identified by IR and NMR;96%
With air In diethyl ether react. of Pd(PPh3)4 suspended in Et2O with excess of the ester in presence of air;>99
1,1'-bis-(diphenylphosphino)ferrocene
12150-46-8

1,1'-bis-(diphenylphosphino)ferrocene

3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

(cycloocta-1,5-diene)palladium(II) chloride

(cycloocta-1,5-diene)palladium(II) chloride

[Pd(CH(CO2CH3)COCH(CO2CH3))(Fe(C5H4P(C6H5)2)2)]
524942-59-4, 524747-03-3

[Pd(CH(CO2CH3)COCH(CO2CH3))(Fe(C5H4P(C6H5)2)2)]

Conditions
ConditionsYield
With silver(l) oxide In dichloromethane N2, refluxed for 5 h (an excess of Ag and P compds.); filtered, evapd. to dryness, dissolved (CH2Cl2), diethyl ether or petroleum ether added, ppt. filtered, dried (vac.); IR, NMR;96%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

benzaldehyde
100-52-7

benzaldehyde

tetramethyl 2-carboxymethyl-2-hydroxy-4-oxo-6-phenyl-1,3,5-cyclohexanetricarboxylic acid ester
21712-91-4

tetramethyl 2-carboxymethyl-2-hydroxy-4-oxo-6-phenyl-1,3,5-cyclohexanetricarboxylic acid ester

Conditions
ConditionsYield
Stage #1: 3-oxopentanedioic acid dimethyl ester In aq. buffer for 0.166667h; pH=8.3;
Stage #2: benzaldehyde In aq. buffer for 48h;
95.3%
Stage #1: 3-oxopentanedioic acid dimethyl ester In aq. acetate buffer for 0.166667h; pH=8.3;
Stage #2: benzaldehyde In aq. buffer for 48h; pH=8.3;
95.3%
for 48h; aq. bicarbonate buffer, pH 8.3;
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

3-chloro-but-1-yne
21020-24-6

3-chloro-but-1-yne

5-methyl-3-cyclohexenone
51992-37-1

5-methyl-3-cyclohexenone

Conditions
ConditionsYield
With copper(II) choride dihydrate; 2,6-bis(-4-phenyl-4,5-dihydrooxazol-2-yl)pyridine; triethylamine In methanol at 25 - 120℃; for 18h; Reagent/catalyst; Inert atmosphere;95.2%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

1,4-dibromobut-2-yne
2219-66-1

1,4-dibromobut-2-yne

2-[(methoxycarbonyl)methyl]-5-vinylidene-4,5-dihydrofuran-3-carboxylic acid methyl ester
189561-45-3

2-[(methoxycarbonyl)methyl]-5-vinylidene-4,5-dihydrofuran-3-carboxylic acid methyl ester

Conditions
ConditionsYield
With potassium carbonate In tetrahydrofuran for 4h; Heating;95%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

2,3,5-tri-O-benzoyl-β-D-ribofuranosyl azide
7408-41-5

2,3,5-tri-O-benzoyl-β-D-ribofuranosyl azide

1-((2R,3R,4R,5R)-3,4-Bis-benzoyloxy-5-benzoyloxymethyl-tetrahydro-furan-2-yl)-5-methoxycarbonylmethyl-1H-[1,2,3]triazole-4-carboxylic acid methyl ester
135997-83-0

1-((2R,3R,4R,5R)-3,4-Bis-benzoyloxy-5-benzoyloxymethyl-tetrahydro-furan-2-yl)-5-methoxycarbonylmethyl-1H-[1,2,3]triazole-4-carboxylic acid methyl ester

Conditions
ConditionsYield
With potassium carbonate In dimethyl sulfoxide at 23℃; for 15h; Cycloaddition; Dimroth reaction;95%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

3-nitro-benzaldehyde
99-61-6

3-nitro-benzaldehyde

malononitrile
109-77-3

malononitrile

methyl 6-amino-5-cyano-2-(2-methoxy-2-oxoethyl)-4-(3-nitrophenyl)-4H-pyran-3-carboxylate

methyl 6-amino-5-cyano-2-(2-methoxy-2-oxoethyl)-4-(3-nitrophenyl)-4H-pyran-3-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In ethanol at 20℃; for 4h;95%
With piperidine In methanol for 0.25h; Heating;76%
3-oxopentanedioic acid dimethyl ester
1830-54-2

3-oxopentanedioic acid dimethyl ester

trimethyl orthoformate
149-73-5

trimethyl orthoformate

methyl (E)-4-carbomethoxy-3-methoxy-2-butenoate
20414-58-8

methyl (E)-4-carbomethoxy-3-methoxy-2-butenoate

Conditions
ConditionsYield
With toluene-4-sulfonic acid In methanol for 40h; Heating;95%
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