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39819-74-4

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39819-74-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39819-74-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,1 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 39819-74:
(7*3)+(6*9)+(5*8)+(4*1)+(3*9)+(2*7)+(1*4)=164
164 % 10 = 4
So 39819-74-4 is a valid CAS Registry Number.

39819-74-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-methoxycyclopentene

1.2 Other means of identification

Product number -
Other names 2-Cyclopenten-1-yl methyl ether

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:39819-74-4 SDS

39819-74-4Relevant articles and documents

The hydrogen bond directing effect in nitrile oxide cycloadditions to allylic substituted cyclopentenes

Cardarelli, Anna Maria,Fassardi, Vera,Memeo, Misal Giuseppe,Quadrelli, Paolo

, p. 2602 - 2613 (2017/04/10)

A quantitative evaluation of the H-bond directing effect on the stereoselectivity in the cycloaddition of nitrile oxides to 2-cyclopenten-1-ol and allylic cyclopentenyl amides is reported. In apolar solvents the H-bond directing effect promotes a high syn stereoselectivity while H-bond acceptor solvents divert the reactions to the anti face of the dipolarophile. Taft's β parameter gives a good description of the solvent effect on the H-bond directing effect. The persistence of some syn stereoselectivity even in good H-bond acceptor solvents points out the existence of some residual hydrogen bond direction. The syn stereoselectivity in the presence of M(II) salts was also investigated and the results discussed in the light of the potential application of these scaffolds in nucleoside synthesis.

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