Welcome to LookChem.com Sign In|Join Free

CAS

  • or

199277-23-1

Post Buying Request

199277-23-1 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

199277-23-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199277-23-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,2,7 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199277-23:
(8*1)+(7*9)+(6*9)+(5*2)+(4*7)+(3*7)+(2*2)+(1*3)=191
191 % 10 = 1
So 199277-23-1 is a valid CAS Registry Number.

199277-23-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-azido-2-(2-phenylethynyl)benzene

1.2 Other means of identification

Product number -
Other names 2-azidodiphenylacetylene

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:199277-23-1 SDS

199277-23-1Relevant articles and documents

Br?nsted Base-Catalyzed Umpolung Intramolecular Cyclization of Alkynyl Imines

Kondoh, Azusa,Terada, Masahiro

, p. 3998 - 4001 (2018)

A novel “umpolung” intramolecular cyclization of alkynyl imines, in which the electrophilic imine sp2-carbon formally serves as a nucleophilic site, was developed under Br?nsted base catalysis. The reaction involves the unprecedented catalytic generation of α-aminoester enolates from α-iminoesters via the 1,2-addition of the anion of a secondary phosphite to an imine moiety followed by the [1,2]-rearrangement of a dialkoxyphosphoryl moiety from carbon to nitrogen, which is a formal umpolung process, and the intramolecular addition to an alkyne. This is a rare example of a [1,2]-rearrangement of a dialkoxyphosphoryl moiety from carbon to nitrogen to generate an α-amino carbanion and the first catalytic carbon–carbon bond forming reaction utilizing the resulting carbanion as a nucleophile.

Cyclization of Alkyne-Azide with Isonitrile/CO via Self-Relay Rhodium Catalysis

Zhang, Zhen,Xiao, Fan,Huang, Baoliang,Hu, Jincheng,Fu, Bin,Zhang, Zhenhua

supporting information, p. 908 - 911 (2016/03/15)

A self-relay rhodium(I)-catalyzed cyclization of alkyne-azides with two σ-donor/π-acceptor ligands (isonitriles and CO) to form sequentially multiple-fused heterocycle systems via tandem nitrene transformation and aza-Pauson-Khand cyclization has been dev

Umpolung reactivity of indole through gold catalysis

Lu, Biao,Luo, Yingdong,Liu, Lianzhu,Ye, Longwu,Wang, Yanzhao,Zhang, Liming

supporting information; experimental part, p. 8358 - 8362 (2011/10/31)

Electrophilic indole? Indoles, which are typically nucleophilic, can be made electrophilic through gold catalysis. By using an ortho-azido group to deliver a nitrene intramolecularly, an arylalkyne is converted into a gold carbene intermediate containing an indole skeleton that is highly electrophilic at the 3-position. A range of functionalized indoles is readily accessed by utilizing this strategy.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 199277-23-1