cas 40131-09-7, diethyl methoxymethylenemalonate | Articles data ｜lookchem

Welcome to LookChem.com Sign In|Join Free

Article Database

Home > CAS Article list >
40131-09-7

Articles about 40131-09-7Total 2 be found

Article title
Article abstract
Author
Journal number and time
Download

NMR spectroscopic data of some 1-alkoxy-2,2-di(carbonyl, carboxyl, cyano)-substituted ethylenes
The 1H-13C NMR shifts as well as 1H and 13C coupling constants of 14 alkoxymethylene malonic acid and acetoacetic acid derivatives and two alkoxymethylene acetylacetones are reported. The 17O NMR spectra have been recorded for six of them. The long-range coupling 3J(H-C=C-CR) has been used for determining the stereochemistry of the double bond. Copyright
Hametner, Christian,Cernuchova, Petra,Milata, Viktor,Vo-Thanh, Giang,Loupy, Andre
p. 171 - 173
(2007/10/03)

Synthesis and lipase-catalyzed asymmetric acetylation of 3-hydroxyl-2-hydroxymethylpropanal acetals
Prochiral dialkylacetal derivatives of 3-hydroxy-2-hydroxymethylpropanal 6a-e were synthesized from the corresponding 2-substituted diethyl malonates 5a-e and subjected to asymmetric enzymatic acetylation. The diethyl malonates 5a-f were prepared from diethyl chloromethylenemalonate 3 by using either a one- or a two-step process. Asymmetric acetylation of 3-hydroxy-2-hydroxymethylpropanal diethyl acetal 6b with several enzymes was studied first, showing the highest enantiotopic selectivity with lipase from Pseudomonas fluorescens (PFL). Solvent effect was also investigated: the best selectivity was obtained in a mixture of hexane and diethyl ether. Furthermore, several other acetals 6a-e were also tested under the optimal acetylation conditions.
Egri, Gabriella,Fogassy, Elemer,Novak, Lajos,Poppe, Laszlo
p. 547 - 557
(2007/10/03)

More Articles about upstream products of 40131-09-7

More Articles about downstream products of 40131-09-7

Chemical Properties

Boiling Point: 242.2°C at 760 mmHg
Flash Point:98.4°C
Density: 1.099g/cm³
Vapor Pressure: 0.0345mmHg at 25°C
PSA: 61.83000
LogP: 0.64290

Show more

Global suppliers and manufacturers of 40131-09-7total 4 suppliers on LookChem

Company Name
Business Type
Min Order
FOB Price
Main Products
Contact

Dayang Chem (Hangzhou) Co.,Ltd.
Business Type:Lab/Research institutions
Min Order:No Data
FOB Price:No Data
Main Products:994
Country:

Shandong Mopai Biotechnology Co., LTD
Business Type:Lab/Research institutions
Min Order:1 Gram
FOB Price:No Data
Main Products:60
Country:

Antimex Chemical Limied
Business Type:Lab/Research institutions
Min Order:No Data
FOB Price:No Data
Main Products:163
Country:

Amadis Chemical Co., Ltd.
Business Type:Lab/Research institutions
Min Order:10 Milligram
FOB Price:No Data
Main Products:1
Country:

Post a RFQ

Cas No.:

Product Name:

Quantity:

Email:

Company name:

Valid Period:

Detailed Requirements:

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 40131-09-7

About us - Payment - Contact us - Links - Help Center - Disclaimer
SiteMap | Manufacturers | VIP Product | Suppliers | CAS | New CAS | Cas Database | Article Data | Chemical Catalog | Product Name

©2008 LookChem.com,License:ICP NO.:Zhejiang16009103 complaints:service@lookchem.com
[Hangzhou]86-571-87562588,87562561,87562573 Our Legal adviser: Lawyer