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21900-56-1

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21900-56-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21900-56-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,0 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21900-56:
(7*2)+(6*1)+(5*9)+(4*0)+(3*0)+(2*5)+(1*6)=81
81 % 10 = 1
So 21900-56-1 is a valid CAS Registry Number.

21900-56-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-chloro-3-methylbenzoyl chloride

1.2 Other means of identification

Product number -
Other names Benzoyl chloride,2-chloro-3-methyl

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:21900-56-1 SDS

21900-56-1Relevant articles and documents

Synthesis of ArCF2X and [18F]Ar-CF3via Cleavage of the Trifluoromethylsulfonyl Group

Yang, Ren-Yin,Gao, Xinyan,Gong, Kehao,Wang, Juan,Zeng, Xiaojun,Wang, Mingwei,Han, Junbin,Xu, Bo

supporting information, p. 164 - 168 (2021/12/17)

A versatile synthesis of ArCF2X and [18F]Ar-CF3 type compounds from readily available ArCF2SO2CF3 has been developed. Diverse nucleophiles, including weak nucleophiles such as halides (18F-, Cl-, Br-, and I-), RSH, and ROH, could react with ArCF2SO2CF3 efficiently to give the corresponding difluoromethylene products. The control experiments and the Hammett plot indicated that the reaction might proceed through a difluorocarbocation intermediate generated from the steric hindrance-assisted cleavage of the trifluoromethylsulfonyl group.

Palladium-catalyzed intramolecular C-H arylation of 2-halo-: N -Boc- N -arylbenzamides for the synthesis of N-H phenanthridinones

Hu, Quan-Fang,Gao, Tian-Tao,Shi, Yao-Jie,Lei, Qian,Yu, Luo-Ting

, p. 13879 - 13890 (2018/04/25)

A palladium catalyzed synthesis of N-H phenanthridinones was developed via C-H arylation. The protocol gives phenanthridinones regioselectively by one-pot reaction without deprotection. It exhibits broad substrate scope and affords targets in up to 95% yields. Importantly, it could be applied for the less reactive o-chlorobenzamides.

Palladium-catalyzed annulation of haloanilines and halobenzamides using norbornadiene as an acetylene synthon: A route to functionalized indolines, isoquinolinones, and indoles

Thansandote, Praew,Hulcoop, David G.,Langer, Michael,Lautens, Mark

supporting information; experimental part, p. 1673 - 1678 (2009/07/17)

A general procedure for the palladium-catalyzed annulation of substituted haloanilines with norbornadiene gives functionalized indolines in 51-98% yield. These indolines can be rapidly converted to benzenoid- substituted indoles and tricyclic indolines. Extension to the use of substituted halobenzamides gives functionalized isoquinolinones in up to 86% yield.

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