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131570-62-2

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131570-62-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131570-62-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,7 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 131570-62:
(8*1)+(7*3)+(6*1)+(5*5)+(4*7)+(3*0)+(2*6)+(1*2)=102
102 % 10 = 2
So 131570-62-2 is a valid CAS Registry Number.

131570-62-2Downstream Products

131570-62-2Relevant articles and documents

Intramolecular cycloaddition of the azomethine ylides derived from α-amino acids or esters and 5-Oxo-6-heptenals or 4-Oxo-5-hexenals

Kanemasa, Shuji,Doi, Kenji,Wada, Eiji

, p. 2866 - 2871 (2007/10/02)

Intramolecular cycloadditions of the azomethine ylides bearing a carbonyl-activated olefinic moiety, generated from a-amino acids or esters and 5-oxo-6-heptenals or 4-oxo-5-hexenals, produce the stereoselective internal cycloadducts either to olefin or carbonyl dipolarophilic function with normal or inverse regioselectivity, depending upon the types of ylides as well as the intervening chain length. Exclusively high diastereofacial selectivity has been achieved when 2-phenyl-4-thiazolidinecarboxylic acid and its methyl ester are utilized.

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