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15861-50-4

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15861-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15861-50-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,8,6 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 15861-50:
(7*1)+(6*5)+(5*8)+(4*6)+(3*1)+(2*5)+(1*0)=114
114 % 10 = 4
So 15861-50-4 is a valid CAS Registry Number.

15861-50-4Relevant articles and documents

An efficient intermolecular C(aryl)-S bond forming reaction catalyzed by BINAM-copper(II) complex

Prasad,Naidu, Ajay B.,Sekar

, p. 1411 - 1415 (2009)

A wide range of diaryl thioethers and aryl alkyl thioethers are synthesized from the corresponding aryl iodides and aromatic/aliphatic thiols through Ullmann type intermolecular coupling reactions in the presence of a catalytic amount of easily available BINAM-Cu(OTf)2 complex. Less reactive aryl bromides have also been shown to react with thiols under identical reaction conditions to give good yields of the thioethers without increasing the reaction temperature and time.

Metal-Free Cercosporin-Photocatalyzed C-S Coupling for the Selective Synthesis of Aryl Sulfides under Mild Conditions

Li, Jia,Bao, Wenhao,Zhang, Yan,Rao, Yijian

supporting information, p. 7175 - 7178 (2019/11/16)

Aryl sulfides are important motifs of bioactive molecules, which are generally synthesized by transition metal-based coupling reactions under harsh conditions. Herein, we developed a new method that visible light along with cercosporin, produced by liquid fermentation and functioned as a cost-effective and environmentally friendly photocatalyst, prompted the selective synthesis of aryl sulfides through C–S coupling of thiols and diazonium salts under mild conditions. Furthermore, this method can also be performed with a great conversion by the direct use of cercosporin-containing fermentation supernatant as catalytic system without organic solvent extraction.

Synthesis of Diverse o-Arylthio-Substituted Diaryl Ethers by Direct Oxythiolation of Arynes with Diaryl Sulfoxides Involving Migratory O-Arylation

Matsuzawa, Tsubasa,Uchida, Keisuke,Yoshida, Suguru,Hosoya, Takamitsu

supporting information, p. 5521 - 5524 (2017/10/25)

A diverse range of o-arylthio-substituted diaryl ethers has been synthesized by direct oxythiolation of arynes with diaryl sulfoxides that involves the formation of the C-O and C-S bonds followed by migratory O-arylation.

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