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1387581-92-1

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1387581-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1387581-92-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,7,5,8 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1387581-92:
(9*1)+(8*3)+(7*8)+(6*7)+(5*5)+(4*8)+(3*1)+(2*9)+(1*2)=211
211 % 10 = 1
So 1387581-92-1 is a valid CAS Registry Number.

1387581-92-1Relevant articles and documents

Synthesis of Polysubstituted Pyridines via a One-Pot Metal-Free Strategy

Wei, Hongbo,Li, Yun,Xiao, Ke,Cheng, Bin,Wang, Huifei,Hu, Lin,Zhai, Hongbin

, p. 5974 - 5977 (2016/01/09)

An efficient strategy for the one-pot synthesis of polysubstituted pyridines via a cascade reaction from aldehydes, phosphorus ylides, and propargyl azide is reported. The reaction sequence involves a Wittig reaction, a Staudinger reaction, an aza-Wittig reaction, a 6π-3-azatriene electrocyclization, and a 1,3-H shift. This protocol provides quick access to the polysubstituted pyridines from readily available substrates in good to excellent yields.

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