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253681-15-1

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253681-15-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253681-15-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,6,8 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 253681-15:
(8*2)+(7*5)+(6*3)+(5*6)+(4*8)+(3*1)+(2*1)+(1*5)=141
141 % 10 = 1
So 253681-15-1 is a valid CAS Registry Number.

253681-15-1Relevant articles and documents

Alkylation of Amines with Alcohols and Amines by a Single Catalyst under Mild Conditions

Zou, Qingzhu,Wang, Chao,Smith, Jen,Xue, Dong,Xiao, Jianliang

supporting information, p. 9656 - 9661 (2015/06/30)

An efficient catalytic system for the alkylation of amines with either alcohols or amines under mild conditions has been developed, using cyclometallated iridium complexes as catalysts. The method has broad substrate scope, allowing for the synthesis of a diverse range of secondary and tertiary amines with good to excellent yields. By controlling the ratio of substrates, both mono- and bis-alkylated amines can be obtained with high selectivity. In particular, methanol can be used as the alkylating reagent, affording N-methylated products selectively. A strong solvent effect is observed for the reaction.

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