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Benzo[b]thiophene, 3,5-dimethyl-, 1,1-dioxide is a chemical compound with the molecular formula C10H10O2S. It is a derivative of benzo[b]thiophene, a heterocyclic aromatic compound consisting of a benzene ring fused to a thiophene ring. The 3,5-dimethyl substitution refers to the presence of two methyl groups attached to the third and fifth carbon atoms of the benzene ring, while the 1,1-dioxide indicates the presence of a sulfone group (-SO2) at the first carbon atom of the thiophene ring. Benzo[b]thiophene, 3,5-dimethyl-, 1,1-dioxide is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals, as well as its use as an intermediate in organic chemistry. Due to its complex structure and functional groups, it is an important molecule for researchers in the field of heterocyclic chemistry.

1964-40-5

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1964-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1964-40-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,6 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1964-40:
(6*1)+(5*9)+(4*6)+(3*4)+(2*4)+(1*0)=95
95 % 10 = 5
So 1964-40-5 is a valid CAS Registry Number.

1964-40-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 3,5-Dimethyl-1-benzothiophene 1,1-dioxide

1.2 Other means of identification

Product number -
Other names 3,5-dimethyl-thiomorpholine

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:1964-40-5 SDS

1964-40-5Downstream Products

1964-40-5Relevant academic research and scientific papers

Enantioselective hydroarylation or hydroalkenylation of benzo[b]thiophene 1,1-dioxides with organoboranes

Hu, Fangdong,Jia, Jie,Li, Ximing,Xia, Ying

, p. 896 - 901 (2021/02/01)

An efficient protocol for the asymmetric hydroarylation and hydroalkenylation of benzo[b]thiophene 1,1-dioxides with organoboranes has been developed. The combination of a rhodium(I) precatalyst and a chiral diene ligand constitutes the catalytic system, which enables the facile synthesis of 2,3-dihydrobenzo[b]thiophene 1,1-dioxides in good yields with high enantioselectivities. The merging of this asymmetric hydroarylation with the downstream alkylations delivers 2,3-dihydrobenzo[b]thiophene 1,1-dioxides that contain two continuous quaternary stereocenters with high enantioselectivities in a diastereodivergent manner.

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