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497181-14-3

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497181-14-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497181-14-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,1,8 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 497181-14:
(8*4)+(7*9)+(6*7)+(5*1)+(4*8)+(3*1)+(2*1)+(1*4)=183
183 % 10 = 3
So 497181-14-3 is a valid CAS Registry Number.

497181-14-3Relevant articles and documents

Indium-Catalyzed Reductive Sulfidation of Esters by Using Thiols: An Approach to the Diverse Synthesis of Sulfides

Miyazaki, Takahiro,Kasai, Shinsei,Ogiwara, Yohei,Sakai, Norio

, p. 1043 - 1049 (2016/03/01)

A new reductive preparation of unsymmetrical sulfides from esters and thiols in the presence of InI3 and either 1,1,3,3-tetramethyldisiloxane (TMDS) or PhSiH3 as the reductant was developed. This protocol was applied to not only benzoic acid esters that have a methoxy, methyl, chloro, bromo, iodo, or trifluoromethyl group on the aromatic ring but also aliphatic acid esters with either aromatic or aliphatic thiols. A reaction mechanism is proposed by using Hammett plot results and several control experiments. The reductive preparation of unsymmetrical sulfides from esters and thiols by using InI3 and either 1,1,3,3-tetramethyldisiloxane (TMDS) or PhSiH3 was developed. Several mechanistic studies support that the present transformation proceeds through O,S-and S,S-acetals as the reaction intermediates. TMDS = 1,1,3,3-tetramethyldisiloxane, R = aliphatic group.

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