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20718-17-6

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20718-17-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20718-17-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,1 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20718-17:
(7*2)+(6*0)+(5*7)+(4*1)+(3*8)+(2*1)+(1*7)=86
86 % 10 = 6
So 20718-17-6 is a valid CAS Registry Number.

20718-17-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name benzoyl(dimethyloxosulphonio)methanide

1.2 Other means of identification

Product number -
Other names Dimethylsulfonium-benzoylmethylid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:20718-17-6 SDS

20718-17-6Relevant articles and documents

Catalyst- and Substrate-Dependent Chemodivergent Reactivity of Stabilised Sulfur Ylides with Salicylaldehydes

Denisa Bisag, Giorgiana,Ruggieri, Silvia,Fochi, Mariafrancesca,Bernardi, Luca

, p. 3053 - 3059 (2021)

Stabilised sulfur ylides are synthetically appealing compounds, which reactivity under Br?nsted acid catalysis has been poorly explored. Herein, we report a new catalyst- and substrate- dependent chemodivergent reaction between stabilised sulfur ylides and salicylaldehydes, leading to the (suprising) formation of 2H-chromenes or dihydrobenzofurans products. Particular attention was set on the unusual mechanisms involved. Two unique reaction routes including two ylide units in the reactions are proposed. These pathways were validated by performing a selectivity switch in some cases, enabled by the modulation of the nucleophilicity of the sulfur ylide, and by the loading of the Br?nsted acid catalyst in the reaction. (Figure presented.).

Mechanism and Selectivity of Cyclopropanation of 3-Alkenyl-oxindoles with Sulfoxonium Ylides Catalyzed by a Chiral N, N′-Dioxide-Mg(II) Complex

Lv, Cidan,Meng, Xiangxiang,Wang, Min,Zhang, Yan,Hu, Changwei,Kim, Chan Kyung,Su, Zhishan

, p. 11683 - 11697 (2021)

The mechanism and stereoselectivity of an asymmetric cyclopropanation reaction between 3-alkenyl-oxindole and sulfoxonium ylide catalyzed by a chiral N,N′-dioxide-Mg(II) complex were explored using the B3LYP-D3(BJ) functional and the def2-TZVP basis set.

Rhodium(iii)-catalyzed switchable C-H acylmethylation and annulation of 2,2′-bipyridine derivatives with sulfoxonium ylides

Chen, Chen,Chen, Mengjia,Meng, Haifang,Wang, Yani,Yang, Fang,Zhu, Bolin

supporting information, p. 4268 - 4271 (2021/05/31)

A novel protocol for Rh(iii)-catalyzed switchable C-H acylmethylation and annulation of 2,2′-bipyridine derivatives with sulfoxonium ylides is reported. This protocol provides a facile approach to synthesize structurally diverse acylmethylated 2,2′-bipyridine derivatives and acyl pyrido[2,3-a]indolizines with a broad range of functional group tolerance.

Access to multi-functionalized oxazolines via silver-catalyzed heteroannulation of enamides with sulfoxonium ylides

Liu, Rui-Hua,Shan, Qi-Chao,Gao, Ya,Loh, Teck-Peng,Hu, Xu-Hong

supporting information, p. 1411 - 1414 (2020/10/29)

Disclosed herein is an efficient Ag-catalyzed [4 + 1] heteroannulation reaction of enamides with α-carbonyl sulfoxonium ylides. The diastereoselective transformation provides a practical access to a diverse range of multi-functionalized oxazoline derivatives. The synthetic utility of the resultant tetra-substituted oxazolines is further demonstrated by a series of useful manipulations into valuable building blocks of pharmaceutical relevance.

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