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81977-59-5

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81977-59-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81977-59-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,7 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81977-59:
(7*8)+(6*1)+(5*9)+(4*7)+(3*7)+(2*5)+(1*9)=175
175 % 10 = 5
So 81977-59-5 is a valid CAS Registry Number.

81977-59-5Relevant articles and documents

Direct synthesis of 2-oxo-acetamidines from methyl ketones, aromatic amines and DMF: Via copper-catalyzed C(sp3)-H amidination

Xie, Dianke,He, Wei,Xiao, Jiang,Wu, Yao,Guo, Yongjia,Liu, Qiang,Guo, Cancheng

, p. 7203 - 7209 (2019)

A convenient method for the synthesis of 2-oxo-acetamidines from methyl ketones using aromatic amines and DMF as nitrogen sources is reported via copper-catalyzed C(sp3)-H amidination. Various methyl ketones react readily with aromatic amines a

ABNORMAL REARRANGEMENT IN THE REACTION OF 1-ARYL-1-(DIMETHYLAMINO)ETHYLENES WITH NITROSOBENZENES

Koikov, L. N.,Terent'ev, P. B.,Bundel', Yu. G.

, p. 580 - 581 (2007/10/02)

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