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864437-38-7

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864437-38-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 864437-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,4,4,3 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 864437-38:
(8*8)+(7*6)+(6*4)+(5*4)+(4*3)+(3*7)+(2*3)+(1*8)=197
197 % 10 = 7
So 864437-38-7 is a valid CAS Registry Number.

864437-38-7Relevant articles and documents

One-pot four-component synthesis of polysubstituted thiazoles via cascade Ugi/Wittig cyclization starting from odorless Isocyano(triphenylphosphoranylidene)-acetates

Ding, Ming-Wu,Guan, Zhi-Rong,Liu, Zi-Ming,Wan, Qin

, (2020/03/23)

A new one-pot four-component preparation of polysubstituted thiazoles by a cascade Ugi/Wittig cyclization has been developed. The four-component reactions of the odorless isocyano(triphenylphosphoranylidene)acetates 1, aldehydes 2, amines 3 and thiocarboxylic acids 4 produced 2,4,5-trisubstituted thiazoles 5 in moderate to good yields in the presence of triethylamine. The two-component reactions between isocyano(triphenylphosphoranylidene)acetates 1 and thiocarboxylic acids 4 in the presence of triethylamine provided the corresponding 4,5-disubstituted thiazoles 6 in good yields as well.

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