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1431986-46-7

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1431986-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1431986-46-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,9,8 and 6 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1431986-46:
(9*1)+(8*4)+(7*3)+(6*1)+(5*9)+(4*8)+(3*6)+(2*4)+(1*6)=177
177 % 10 = 7
So 1431986-46-7 is a valid CAS Registry Number.

1431986-46-7Downstream Products

1431986-46-7Relevant articles and documents

Regiospecific synthesis of 1,5,6,7-tetrahydro-4H-indol-4-ones via dehydroxylated [3+2] cyclization of β-hydroxy ketones with cyclic enaminones

Lan, Xin-Chan,Chen, Ting-Ting,Zhao, Yan,Wu, Yu,Wang, Jing,Tu, Shu-Jiang,Jiang, Bo,Hao, Wen-Juan

supporting information, p. 1519 - 1522 (2017/03/23)

A new p-TsOH-promoted dehydroxylated [3+2] cyclization strategy has been established, allowing a flexible, practical and regiospecific approach to 23 examples of 1,5,6,7-tetrahydro-4H-indol-4-ones from low-cost and readily accessible β-hydroxy ketones and cyclic enaminones. Notably features of this work include broad functional group compatibility, mild reaction conditions and good reaction yields.

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