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734-18-9

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734-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 734-18-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,3 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 734-18:
(5*7)+(4*3)+(3*4)+(2*1)+(1*8)=69
69 % 10 = 9
So 734-18-9 is a valid CAS Registry Number.

734-18-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,2-difluoro-1-phenyl-2-(phenylsulfonyl)ethanone

1.2 Other means of identification

Product number -
Other names Benzoyldifluormethylphenylsulfon

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:734-18-9 SDS

734-18-9Relevant articles and documents

Preparation method of alpha, alpha-difluoro-beta-ketone sulfone compound

-

Paragraph 0109; 0114-0117, (2021/01/28)

The invention provides a preparation method of an alpha, alpha-difluoro-beta ketone sulfone compound, and belongs to the technical field of chemistry. The invention firstly provides a composition forpreparing a compound shown as a formula I, which consists of the following components: a compound 1, a fluoride initiator and an organic solvent; Ar1 and Ar2 are independently selected from a substituted or unsubstituted aryl group and a substituted or unsubstituted heteroatom aryl group respectively. The invention also provides a method for preparing alpha, alpha-difluoro-beta-ketone sulfone compounds from the composition. According to the invention, metal fluoride is used as an initiator, and a series of compounds can be prepared under mild conditions. The preparation method is simple in synthetic route, good in yield and high in purity; the method has the advantages of excellent functional group adaptability and the like, can be used for preparing alpha, alpha-difluoro-beta-ketone sulfone compounds with various functional groups, and is successfully applied to later modification of natural products and drug molecules. Besides, the reaction scale of the method can be amplified to gram level, and the method can be used for industrial amplification production and has a good application prospect.

Photoredox-catalyzed sulfonylation of difluoroenoxysilanes with the insertion of sulfur dioxide

He, Fu-Sheng,Wu, Jie,Xie, Wenlin,Yao, Yanfang

, p. 9469 - 9472 (2020/09/07)

A photoredox-catalyzed three-component reaction of aryldiazonium tetrafluoroborates with sodium metabisulfite and 2,2-difluoro enol silyl ethers is described. By using sodium metabisulfite as the source of sulfur dioxide, this method provides an elegant a

Stereoselective [3+2] cycloaddition of N-tert-butanesulfinyl imines to arynes facilitated by a removable PhSO2CF2 group: Synthesis and transformation of cyclic sulfoximines

Ye, Wenchao,Zhang, Laijun,Ni, Chuanfa,Rong, Jian,Hu, Jinbo

supporting information, p. 10596 - 10599 (2014/10/15)

An unprecedented [3+2] cycloaddition between N-tert-butanesulfinyl imines and arynes provides a stereoselective method for the synthesis of cyclic sulfoximines. Not only does the difluoro(phenylsulfonyl)methyl group play an important role in facilitating the cycloaddition reaction, it can also be removed or substituted through the transformation of the difluorinated cyclic sulfoximines to cyclic sulfinamides. This journal is the Partner Organisations 2014.

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