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146952-70-7

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146952-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146952-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,9,5 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 146952-70:
(8*1)+(7*4)+(6*6)+(5*9)+(4*5)+(3*2)+(2*7)+(1*0)=157
157 % 10 = 7
So 146952-70-7 is a valid CAS Registry Number.

146952-70-7Upstream product

146952-70-7Downstream Products

146952-70-7Relevant articles and documents

Mild and selective deprotection of tert -butyl(dimethyl)silyl ethers with catalytic amounts of sodium tetrachloroaurate(III) dihydrate

Zhang, Qi,Kang, Xiuqin,Long, Lei,Zhu, Lijuan,Chai, Yonghai

, p. 55 - 64 (2015/02/02)

A simple and mild method for the removal of tert-butyl(dimethyl)silyl (TBS) protecting groups with catalytic amounts of sodium tetrachloroaurate(III) dihydrate is described. The procedure permits selective deprotection of aliphatic TBS ethers in good to excellent yields in the presence of aromatic TBS ethers, aliphatic triisopropylsilyl ethers, aliphatic tert-butyl(diphenyl)silyl ethers, or sterically hindered aliphatic TBS ethers. Additionally, TBS ethers can also be transformed into 4-methoxybenzyl ethers or methyl ethers in one pot by using larger quantities of the catalyst and a higher reaction temperature.

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