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1428541-15-4

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1428541-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1428541-15-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,5,4 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1428541-15:
(9*1)+(8*4)+(7*2)+(6*8)+(5*5)+(4*4)+(3*1)+(2*1)+(1*5)=154
154 % 10 = 4
So 1428541-15-4 is a valid CAS Registry Number.

1428541-15-4Relevant articles and documents

Copper-Catalyzed [2+2+2] Modular Synthesis of Multisubstituted Pyridines: Alkenylation of Nitriles with Vinyliodonium Salts

Sheng, Jinyu,Wang, Yong,Su, Xiang,He, Ru,Chen, Chao

, p. 4824 - 4828 (2017)

A [2+2+2] modular synthesis of multisubstituted pyridines, with excellent regioselectivity, has been realized by copper catalysisand involves three distinct components: vinyliodonium salts, nitriles, and alkynes. The reactions proceeded with the facile formation of an aza-butadienylium intermediate by alkenylation of the nitrile with a vinyliodonium salt. Moreover, the alkynes in the reaction were extended to alkenes, which are an advantage of expense and relative scarceness of alkynes.

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