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199107-18-1

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199107-18-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199107-18-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,1,0 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 199107-18:
(8*1)+(7*9)+(6*9)+(5*1)+(4*0)+(3*7)+(2*1)+(1*8)=161
161 % 10 = 1
So 199107-18-1 is a valid CAS Registry Number.

199107-18-1Downstream Products

199107-18-1Relevant articles and documents

Copper-catalyzed selective benzylic C-O cyclization of N-o-tolylbenzamides: Synthesis of 4 H-3,1-benzoxazines

Li, Yan,Li, Zhongshu,Xiong, Tao,Zhang, Qian,Zhang, Xiangyang

supporting information; body text, p. 3522 - 3525 (2012/08/08)

A novel Selectfluor-mediated copper-catalyzed highly selective benzylic C-O cyclization for the synthesis 4H-3,1-benzoxazines is reported. The predominant selectivity for a benzylic C(sp3)-H over an aromatic C(sp 2)-H bond in N-o-tolylbenzamides is achieved.

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