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52190-40-6

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52190-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52190-40-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,1,9 and 0 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 52190-40:
(7*5)+(6*2)+(5*1)+(4*9)+(3*0)+(2*4)+(1*0)=96
96 % 10 = 6
So 52190-40-6 is a valid CAS Registry Number.

52190-40-6Relevant articles and documents

Disulfide-based metal-free α-sulfanylation of ketones

Vaquer, Andrea F.,Frongia, Angelo,Secci, Francesco,Tuveri, Enrica

, p. 96695 - 96704 (2015/11/24)

An eco-friendly methodology for the direct α-sulfanylation of ketones, has been developed. The procedure, based on the use of functionalized diaryldisulfides and catalyzed by d,l-proline, represents a mild and efficient approach for the preparation of α-arylthio-ketones.

Facile and efficient sulfenylation method using quinone mono-O,S-acetals under mild conditions

Matsugi,Murata,Gotanda,Nambu,Anilkumar,Matsumoto,Kita

, p. 2434 - 2441 (2007/10/03)

A novel sulfenylation method induced by aromatization of quinone mono-O,S-acetals is described. These sulfenylation reagents readily react with silyl enolethers or electron rich aromatic compounds to give sulfenylation products under mild conditions. In particular, O,S-acetal 2j, which possesses a pentafluorophenylthio function, is the most effective reagent from the standpoint of the adaptability for various substrates.

A novel efficient sulfenylation method using quinone mono-O,S-acetals under mild conditions

Matsugi, Masato,Gotanda, Kentoku,Murata, Kenji,Kita, Yasuyuki

, p. 1387 - 1388 (2007/10/03)

A novel method for sulfenylation induced by aromatization of quinone mono-O,S-acetals is described.

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