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23705-40-0

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23705-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23705-40-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,0 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23705-40:
(7*2)+(6*3)+(5*7)+(4*0)+(3*5)+(2*4)+(1*0)=90
90 % 10 = 0
So 23705-40-0 is a valid CAS Registry Number.
InChI:InChI=1/C11H17NO2S/c1-4-10(3)12-15(13,14)11-7-5-9(2)6-8-11/h5-8,10,12H,4H2,1-3H3

23705-40-0SDS

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 N-butan-2-yl-4-methylbenzenesulfonamide

1.2 Other means of identification

Product number -
Other names N-sec-butyl-toluene-4-sulfonamide

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:23705-40-0 SDS

23705-40-0Relevant articles and documents

An efficient method for the preparation of monoalkylated sulfonamides from unsubstituted sulfonamides and alkyl diphenylphosphinites by oxidation-reduction condensation using trimethylsilylmethyl azide

Aoki, Hidenori,Kuroda, Kiichi,Mukaiyama, Teruaki

, p. 1266 - 1267 (2005)

An efficient method for monoalkylation of unsubstituted sulfonamides was established by using alkyl diphenylphosphinites, sulfonamides and trimethylsilylmethyl azide and the monoalkylated sulfonamides were afforded in good yields under neutral conditions.

A Hydrazone-Based exo-Directing-Group Strategy for β C-H Oxidation of Aliphatic Amines

Huang, Zhongxing,Wang, Chengpeng,Dong, Guangbin

supporting information, p. 5299 - 5303 (2016/04/26)

Described is a new hydrazone-based exo-directing group (DG) strategy developed for the functionalization of unactivated primary β C-H bonds of aliphatic amines. Conveniently synthesized from protected primary amines, the hydrazone DGs are shown to site-selectively promote the β-acetoxylation and tosyloxylation via five-membered exo-palladacycles. Amines with a wide scope of skeletons and functional groups are tolerated. Moreover, the hydrazone DG can be readily removed, and a one-pot C-H acetoxylation/DG removal protocol was also discovered. All about the DGs: A hydrazone-based exo-directing group (DG) strategy is developed for the functionalization of unactivated primary β C-H bonds of aliphatic amines. The hydrazone DGs can be conveniently installed and removed, and promote β-acetoxylation and tosyloxylation via a five-membered exo-palladacycle. PG=protecting group, Ts=4-toluenesulfonyl.

Br?nsted acid-assisted N-alkylation of sulfonamides using ethers as the alkylation reagents

Shi, Wei,Bai, Chun-Mei,Zhu, Kai,Cui, Dong-Mei,Zhang, Chen

, p. 434 - 438 (2014/01/06)

N-Alkylation of sulfonamides using cyclic ethers as alkylation reagents and Br?nsted acid as a catalyst produced pyrrolidine and piperidine derivatives in good yields. When using symmetrical and unsymmetrical ethers as alkylation reagents, mono-N-alkylation of sulfonamides took place to afford the corresponding products.

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