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144899-38-7

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144899-38-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144899-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,8,9 and 9 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 144899-38:
(8*1)+(7*4)+(6*4)+(5*8)+(4*9)+(3*9)+(2*3)+(1*8)=177
177 % 10 = 7
So 144899-38-7 is a valid CAS Registry Number.

144899-38-7Relevant articles and documents

Controllable Intramolecular Unactivated C(sp3)-H Amination and Oxygenation of Carbamates

Guo, Qihang,Ren, Xiang,Lu, Zhan

, p. 880 - 884 (2019/05/16)

Dual catalyst-controlled intramolecular unactivated C(sp3)-H amination and oxygenation of carbamates merging visible-light photocatalysis and earth-abundant transition metal catalysis have been reported. Useful amino alcohol and diol derivatives could be selectively obtained from readily available tertiary alcohol derivatives. The possible mechanisms have been proposed via a 1,5-HAT process followed by Lewis acid-controlled cyclization. The nickel and zinc catalysts inhibit the formation of oxygenation and amination products, respectively. An interesting phenomenon of chirality transfer is also observed.

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