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139615-76-2

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139615-76-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139615-76-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,6,1 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139615-76:
(8*1)+(7*3)+(6*9)+(5*6)+(4*1)+(3*5)+(2*7)+(1*6)=152
152 % 10 = 2
So 139615-76-2 is a valid CAS Registry Number.

139615-76-2Relevant articles and documents

Synthesis of 2(E),4(E)-Dienamides and 2(E),4(E)-Dienoates from 1,3-Dienes via 2-Phenylsulfonyl 1,3-Dienes

Plobeck, Niklas A.,Baeckvall, Jan-E.

, p. 4508 - 4512 (1991)

A procedure for the preparation of 2E,4E unsaturated carboxylic acid derivatives from dienes was developed.Transformation of terminal 1,3-dienes to (E)-2-phenylsulfonyl 1,3-dienes and subsequent addition of a carboxy anion equivalent and elimination of benzenesulfinic acid led to 2,4-dienoic amides and esters.In this way the natural products N-isobutyl-2(E),4(E)-undecadienamide (1a), N-isobutyl-2(E),4(E)-decadienamide (pellitorine, 1b), and methyl 2(E),4(E)-decadienoate (1c) were obtained in high isomeric purity.

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