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37556-51-7

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37556-51-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37556-51-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,5,5 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 37556-51:
(7*3)+(6*7)+(5*5)+(4*5)+(3*6)+(2*5)+(1*1)=137
137 % 10 = 7
So 37556-51-7 is a valid CAS Registry Number.

37556-51-7Relevant articles and documents

Enantioselective Copper-Catalyzed Electrophilic Sulfenylation of Cyclic Imino Esters

Chen, Zhiwei,Lin, Huaxin,Han, Jian,Fang, Dongmei,Wang, Min,Liao, Jian

supporting information, p. 9146 - 9150 (2021/11/30)

Herein we report an enantioselective sulfenylation of cyclic imino esters with the efficient and versatile sulfenylation reagent S-alkyl 4-methylbenzenesulfonothioates. By utilizing the Cu/tBu-Phosferrox catalytic system, we can assemble diverse S-alkyl groups into the cyclic imino esters under mild conditions in good yields and with excellent enantioselectivities. Remarkably, this method demonstrates a high tolerance of diverse functional groups and proves to be applicable in the late-stage functionalization of pharmaceuticals.

TFA promoted multi-component reaction of aryldiazonium with sodium metabisulphite and thiols: Construction of thiosulfonate under transition-metal free conditions

Huang, Cheng-Mi,Li, Jian,Wang, Shun-Yi,Ji, Shun-Jun

supporting information, p. 1923 - 1926 (2020/01/13)

A TFA promoted multi-component reaction of aryldiazonium with sodium metabisulphite and thiols to construct thiosulfonates under transition-metal free conditions is reported. The thiosulfonates were isolated in good yields with broad tolerance of function

Selective Ortho Thiolation Enabled by Tuning the Ancillary Ligand in Palladium/Norbornene Catalysis

Cai, Wenqiang,Gu, Zhenhua

supporting information, p. 3204 - 3209 (2019/05/01)

Site-selective introduction of a sulfur group into aromatic compounds is essential and useful in organic, material, and pharmaceutical chemistry. A palladium/norbornene-catalyzed chemoselective ortho thiolation of aryl halides was reported. The selectivit

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