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1520814-76-9

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1520814-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1520814-76-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,2,0,8,1 and 4 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1520814-76:
(9*1)+(8*5)+(7*2)+(6*0)+(5*8)+(4*1)+(3*4)+(2*7)+(1*6)=139
139 % 10 = 9
So 1520814-76-9 is a valid CAS Registry Number.

1520814-76-9Downstream Products

1520814-76-9Relevant articles and documents

Reaction method of thiophenol and O-diiodobenzene

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Paragraph 0014-0016; 0030; 0037-0039, (2021/11/10)

The invention discloses a reaction method of thiophenol and o-diiodobenzene. The method comprises the following steps: taking thiophenol and o-diiodobenzene as substrates, reacting in a solvent in the presence of a metal hydride, and completing the reaction of thiophenol and o-diiodobenzene to obtain o-iodobenzene sulfide. Under the action of NaH, o-diiodobenzene and thiophenol are subjected to a nucleophilic reaction to generate an o-iodobenzene sulfide product. According to the method, C-S bond coupling is completed without transition metal participation, operation is easy and convenient, and the problems of metal reagent residues, pollution and the like are solved; meanwhile, compared with an existing precursor, o-diiodobenzene is low in price and convenient to prepare, and has better atom economy; and an iodine exists at the ortho-position of the generated product phenyl sulfide, other conversions can be conveniently carried out to obtain various 1, 2-substituted benzene, and particularly, the excellent yield can be obtained by only needing 3 equivalents of metal hydride.

Copper-catalyzed selective single arylsulfanylation of aryl diiodides with aryl thiols

Liu, Yunyun,Wang, Hang,Cao, Xiaoji,Fang, Zheng,Wan, Jie-Ping

, p. 2977 - 2982 (2013/11/06)

Selective single arylsulfanylation reactions of aryl diiodides with aryl or hetaryl thiols to give a broad array of iodine-functionalized sulfides were developed. Further elaboration of the iodine-containing products to provide a variety of aryl and hetaryl sulfides through coupling reactions was also demonstrated. Georg Thieme Verlag Stuttgart, New York.

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