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1146-48-1

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1146-48-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1146-48-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,4 and 6 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1146-48:
(6*1)+(5*1)+(4*4)+(3*6)+(2*4)+(1*8)=61
61 % 10 = 1
So 1146-48-1 is a valid CAS Registry Number.

1146-48-1Relevant articles and documents

Visible-Light-Induced Cyclization/Aromatization of 2-Vinyloxy Arylalkynes: Synthesis of Thio-Substituted Dibenzofuran Derivatives

Chen, Hui,Chen, Yanyan,Mo, Zuyu,Xu, Yanli,Yan, Yunyun,Zhang, Niuniu

, p. 376 - 381 (2021)

A visible-light-induced cascade reaction of 2-vinyloxy arylalkynes with thiosulfonates was developed and provided unexpected thio-substituted dibenzofuran derivatives in moderate yields. Mechanistic studies revealed the thiosulfonylation product of 2-vinyloxy arylalkyne was the key intermediate, and the additive disulfide played the role of hydrogen abstraction in the aromatization process to offer the desired product. This reaction presents a new reaction mode for the construction of polycyclic oxygen heterocycles.

Visible-light-promoted synthesis of secondary and tertiary thiocarbamates from thiosulfonates andN-substituted formamides

Bi, Wen-Zhu,Zhang, Wen-Jie,Li, Zi-Jie,He, Yuan-Hao,Feng, Su-Xiang,Geng, Yang,Chen, Xiao-Lan,Qu, Ling-Bo

supporting information, p. 8701 - 8705 (2021/10/22)

A general visible-light-promoted metal-free synthesis of secondary and tertiary thiocarbamates starting from thiosulfonates andN-substituted formamides is developed. By employing rhodamine B as a photocatalyst andtert-butyl hydroperoxide (TBHP) as an oxidant, a wide scope of thiocarbamates can be obtained through direct thiolation of acyl C-H bonds under irradiation of blue light at room temperature for 12 h.

Metal-Free Radical Annulation of Oxygen-Containing 1,7-Enynes: Configuration-Selective Synthesis of (E)-3-((Arylsulfonyl)methyl)-4-Substituted Arylidenechromene Derivatives

Bian, Mouwang,Dai, Lei,Mao, Kaimin,Rong, Liangce,Wang, Chang,Yu, Qiuyu,Zhang, Jinghang

supporting information, p. 218 - 224 (2021/01/13)

A novel strategy for the synthesis of (E)-3-((arylsulfonyl)methyl)-4-substituted benzylidenechromene derivatives via a metal-free radical annulation reaction of oxygen-containing 1,7-enynes with thiosulfonates has been developed. The reaction shows broad substrate scope, wide functional group tolerance, and moderate to excellent yields. Moreover, thiosulfonates were well driven to achieve the bifunctionalization reaction of oxo-1,7-enynes which derived from aliphatic alkynes. In addition, the (E)-configuration of the products was highly controlled by the structure of 1,7-enyne.

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