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90172-74-0

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90172-74-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90172-74-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,7 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90172-74:
(7*9)+(6*0)+(5*1)+(4*7)+(3*2)+(2*7)+(1*4)=120
120 % 10 = 0
So 90172-74-0 is a valid CAS Registry Number.

90172-74-0Relevant articles and documents

Preparation method of thioester compounds

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Paragraph 0036-0047, (2021/01/29)

The invention discloses a preparation method of thioester compounds, wherein the method comprises the following steps: adding nickel trifluoromethanesulfonate, 4,4'-di-tert-butyl-2,2'-dipyridyl, carbonyl molybdenum, potassium carbonate, zinc iodide, water

Controllable phosphorylation of thioesters: Selective synthesis of aryl and benzyl phosphoryl compounds

Xu, Kaiqiang,Liu, Long,Li, Zhaohui,Huang, Tianzeng,Xiang, Kang,Chen, Tieqiao

, p. 14653 - 14663 (2020/12/29)

The controllable phosphorylations of thioesters were developed. When the reaction was catalyzed by a palladium catalyst, aryl or alkenyl phosphoryl compounds were generated through decarbonylative coupling, while the benzyl phosphoryl compounds were produced through deoxygenative coupling when the reaction was carried out in the presence of only a base.

Na2CO3-promoted thioesterification via N–C bond cleavage of amides to construct thioester derivatives

Tao, Jiasi,Yu, Weijie,Luo, Jin,Wang, Tao,Ge, Wanling,Zhang, Ziwei,Yang, Bingjie,Xiong, Fei

, p. 486 - 492 (2019/11/03)

A mild, efficient, and transition-metal-free catalytic strategy is developed to construct thioesters via selective N–C bond cleavage of Boc2-activated primary amides. This strategy is successfully carried out with stoichiometric Na2C

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