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345217-80-3

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345217-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 345217-80-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,5,2,1 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 345217-80:
(8*3)+(7*4)+(6*5)+(5*2)+(4*1)+(3*7)+(2*8)+(1*0)=133
133 % 10 = 3
So 345217-80-3 is a valid CAS Registry Number.

345217-80-3Upstream product

345217-80-3Relevant articles and documents

The highly enantioselective transformation of silylketenes into α-silylthioesters catalysed by cinchona alkaloids

Blake, Alexander J.,Friend, Christopher L.,Outram, Robert J.,Simpkins, Nigel S.,Whitehead, Andrew J.

, p. 2877 - 2881 (2007/10/03)

The reaction of silylketenes with thiophenol, mediated by cinchona alkaloid catalysts, proceeds to give α-silylthioester products in good chemical yield and with enantiomeric excess values in the range 79-93%. The absolute configuration of one of the thioester products was determined by X-ray diffraction.

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