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2-Butenoic acid, 3-methoxy-, ethyl ester, (2Z)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

22157-28-4

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22157-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22157-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,5 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22157-28:
(7*2)+(6*2)+(5*1)+(4*5)+(3*7)+(2*2)+(1*8)=84
84 % 10 = 4
So 22157-28-4 is a valid CAS Registry Number.

22157-28-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-methoxy-2(E)-butenoic acid ethyl ester

1.2 Other means of identification

Product number -
Other names ethyl 3-methoxycrotonate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:22157-28-4 SDS

22157-28-4Relevant academic research and scientific papers

PANTETHEINE DERIVATIVES AND USES THEREOF

-

Paragraph 2121, (2020/06/19)

The present disclosure relates to compounds of Formula (I), (II), or (II'): (I), (II), (II'), and pharmaceutically acceptable salts or solvates thereof. The present disclosure also relates to pharmaceutical compositions comprising the compounds and therapeutic and diagnostic uses of the compounds and pharmaceutical compositions.

New insights into the reduction of β,δ-diketo-sulfoxides

Hanquet, Gilles,Salom-Roig, Xavier J.,Gressot-Kempf, Laurence,Lanners, Steve,Solladie, Guy

, p. 1291 - 1301 (2007/10/03)

New developments in the reduction of β,δ-diketo-sulfoxides, a reaction that affords important key intermediates for total synthesis, are described. We showed without ambiguity using NMR experiments, that the β-carbonyl group is totally enolised. This result is inconsistent with the previous hypothesis, which supposed the other tautomer (enolisation at the δ-position) as the major one. We propose a rationale to explain the side reactions occurring during the reduction of unprotected β,δ-diketo-sulfoxides and showed that judicious protection of the δ-carbonyl group gave all diastereoisomers of β-hydroxy-δ-ketosulfoxides.

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