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74585-40-3

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74585-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74585-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,8 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74585-40:
(7*7)+(6*4)+(5*5)+(4*8)+(3*5)+(2*4)+(1*0)=153
153 % 10 = 3
So 74585-40-3 is a valid CAS Registry Number.

74585-40-3Downstream Products

74585-40-3Relevant articles and documents

Metalation of 1,3-Dithiolanes. Mercaptan Synthesis and Carbonyl Transposition

Wilson, Stephen R.,Georgiadis, Gregory M.,Khatri, Hiralal N.,Bartmess, John E.

, p. 3577 - 3583 (2007/10/02)

The reaction of 1,3-dithiolanes with n-butyllithium results in fragmentation to the corresponding thiocarbonyl compound followed by furhter reaction with n-butyllithium.All four types of thiocarbonyl reactions are observed: reduction, S-addition, C-addition, double addition.Synthetic applications of this reaction for the synthesis of secondary mercaptans and 1,2-carbonyl transposition (23 -> 24a-c) are described.

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