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182949-90-2

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182949-90-2 Usage

Uses

6-Bromoisochroman is a useful reagent in the study of manganese dioxide-methanesulfonic acid promoted dehydrogenative alkylation of sp3 C-H bonds adjacent to heteroatom.

Check Digit Verification of cas no

The CAS Registry Mumber 182949-90-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,2,9,4 and 9 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 182949-90:
(8*1)+(7*8)+(6*2)+(5*9)+(4*4)+(3*9)+(2*9)+(1*0)=182
182 % 10 = 2
So 182949-90-2 is a valid CAS Registry Number.
InChI:InChI=1/C9H9BrO/c10-9-2-1-8-6-11-4-3-7(8)5-9/h1-2,5H,3-4,6H2

182949-90-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 6-bromo-3,4-dihydro-1H-isochromene

1.2 Other means of identification

Product number -
Other names 6-bromoisochroman

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:182949-90-2 SDS

182949-90-2Relevant articles and documents

Merging Photoredox with Br?nsted Acid Catalysis: The Cross-Dehydrogenative C?O Coupling for sp3 C?H Bond Peroxidation

Xia, Qing,Wang, Qiang,Yan, Changcun,Dong, Jianyang,Song, Hongjian,Li, Ling,Liu, Yuxiu,Wang, Qingmin,Liu, Xiangming,Song, Haibin

supporting information, p. 10871 - 10877 (2017/08/18)

A photoredox and Br?nsted acid synergistically catalyzed cross-dehydrogenative C?O coupling reaction is developed in which isochroman peroxyacetals are formed through sp3 C?H bond peroxidation. The reported method is characterized by its extremely mild reaction conditions, excellent yields, and broad substrate scope. An oxocarbenium ion p-chlorobenzenesulfonate was speculated to be the reactive intermediate. The role of hemiacetals and oxygenated dimers on the effective stabilization of the oxocarbenium ion was investigated; the presence of acid appeared to establish equilibrium between hemiacetals and oxygenated dimers with the oxocarbenium ion pairs. The broad applicability of the method highlights the potential of the protocol for molecule synthesis.

Manganese dioxide-methanesulfonic acid promoted direct dehydrogenative alkylation of sp3 C-H bonds adjacent to a heteroatom

Liu, Xigong,Sun, Bin,Xie, Zhiyu,Qin, Xiaojun,Liu, Lei,Lou, Hongxiang

, p. 3104 - 3112 (2013/06/05)

A manganese dioxide (MnO2)-methanesulfonic acid (CH 3SO3H) oxidation system has been developed to efficiently promote direct coupling of benzylic ethers and carbamates with simple ketones via oxidative C-H bond activation.

Copper-catalyzed enantioselective additions to oxocarbenium ions: Alkynylation of isochroman acetals

Maity, Prantik,Srinivas, Harathi D.,Watson, Mary P.

, p. 17142 - 17145 (2011/12/13)

We have developed an enantioselective, copper(I)-catalyzed addition of terminal alkynes to racemic isochroman acetals. This method is one of the first transition-metal-catalyzed approaches to enantioselective additions to prochiral oxocarbenium ions. In this reaction, TMSOTf is used to form the oxocarbenium ion in situ under conditions compatible with simultaneous formation of the chiral copper acetylide. By using a bis(oxazoline) ligand, good yields and enantioselectivities are observed for a variety of enantioenriched 1-alkynyl isochromans.

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