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220474-60-2

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220474-60-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220474-60-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,4,7 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 220474-60:
(8*2)+(7*2)+(6*0)+(5*4)+(4*7)+(3*4)+(2*6)+(1*0)=102
102 % 10 = 2
So 220474-60-2 is a valid CAS Registry Number.

220474-60-2Relevant articles and documents

Boron insertion into alkyl ether bonds via zinc/nickel tandem catalysis

Lyu, Hairong,Kevlishvili, Ilia,Yu, Xuan,Liu, Peng,Dong, Guangbin

, (2021/04/30)

Mild methods to cleave the carbon-oxygen (C?O) bond in alkyl ethers could simplify chemical syntheses through the elaboration of these robust, readily available precursors. Here we report that dibromoboranes react with alkyl ethers in the presence of a nickel catalyst and zinc reductant to insert boron into the C?O bond. Subsequent reactivity can effect oxygen-to-nitrogen substitution or one-carbon homologation of cyclic ethers and more broadly streamline preparation of bioactive compounds. Mechanistic studies reveal a cleavage-then-rebound pathway via zinc/nickel tandem catalysis.

Synthesis of 3-arylpyrrolidines by cycloadditions of N,N-bis(benzotriazolylmethyl)amines to styrenes

Katritzky, Alan R.,Fang, Yunfeng,Qi, Ming,Feng, Darning

, p. 2535 - 2541 (2007/10/03)

A novel synthesis of 3-arylpyrrolidines (3a-m) via the cycloaddition of bis-benzotriazole derivatives to styrenes is described.

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