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151629-26-4

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151629-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151629-26-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,6,2 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 151629-26:
(8*1)+(7*5)+(6*1)+(5*6)+(4*2)+(3*9)+(2*2)+(1*6)=124
124 % 10 = 4
So 151629-26-4 is a valid CAS Registry Number.

151629-26-4Relevant articles and documents

Methods for the Stereoselective Synthesis of 2-Fluoroalkenoates. Carbonyl Condensation Reactions of 3,3-Bis(methylthio)-2-fluoropropenal, a Highly-Functionalized Fluoroacrylate Cation Equivalent

Pirrung, Michael C.,Rowley, Elizabeth G.,Holmes, Christopher P.

, p. 5683 - 5689 (2007/10/02)

New methodology for the preparation of 2-fluoroacrylates has been developed on the basis of the reagent 3,3-bis(methylthio)-2-fluoropropenal.This highly-functionalized aldehyde is prepared by the condensation of carbon disulfide with fluoroacetonitrile followed by reduction of the nitrile.It is subjected to nucleophilic addition with organometallic reagents and enolates to yield allylic alcohol products that can be rearranged under acidic conditions to (Z)-2-fluoroacrylate thioesters.Other desired fluoroacrylates are also available via conventional fluorinated Horner-Wadsworth-Emmons or Reformatsky reagents.

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