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1616268-56-4

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1616268-56-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1616268-56-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,2,6 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1616268-56:
(9*1)+(8*6)+(7*1)+(6*6)+(5*2)+(4*6)+(3*8)+(2*5)+(1*6)=174
174 % 10 = 4
So 1616268-56-4 is a valid CAS Registry Number.

1616268-56-4Relevant articles and documents

Silver-Mediated Synthesis of Substituted Benzofuran- And Indole-Pyrroles via Sequential Reaction of ortho-Alkynylaromatics with Methylene Isocyanides

Liu, Jian-Quan,Chen, Xinyi,Shatskiy, Andrey,K?rk?s, Markus D.,Wang, Xiang-Shan

, p. 8998 - 9006 (2019)

A silver-mediated reaction between 2-ethynyl-3-(1-hydroxyprop-2-yn-1-yl)phenols or 2-ethynyl-3-(1-hydroxyprop-2-yn-1-yl)anilines and methylene isocyanides has been developed. A sequential 5-endo-dig cyclization and [3 + 2] cycloaddition process is proposed. This synthetic strategy is atom- and step-efficient and applicable to a broad scope of substrates, allowing the synthesis of valuable substituted benzofuran- and indole-pyrroles in moderate to high yields.

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