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939-28-6

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939-28-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 939-28-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,3 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 939-28:
(5*9)+(4*3)+(3*9)+(2*2)+(1*8)=96
96 % 10 = 6
So 939-28-6 is a valid CAS Registry Number.

939-28-6Relevant articles and documents

Highly selective sp3 C-N bond activation of tertiary anilines modulated by steric and thermodynamic factors

Jia, Xiaodong,Li, Pengfei,Shao, Yu,Yuan, Yu,Ji, Honghe,Hou, Wentao,Liu, Xiaofei,Zhang, Xuewen

supporting information, p. 5568 - 5574 (2017/12/06)

A highly selective sp3 C-N cleavage of tertiary anilines was achieved using the TBN/TEMPO catalyst system. When N,N-diaklylanilines (alkyl, benzyl) were employed, the N-CH3 bond was selectively cleaved via radical C-H activation. Moreover, when the allyl group was installed, totally reverse selectivity was observed. It is worth noting that the solvent effect is also crucial to obtain high reaction efficiency and selectivity.

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