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22751-68-4

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22751-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22751-68-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,7,5 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22751-68:
(7*2)+(6*2)+(5*7)+(4*5)+(3*1)+(2*6)+(1*8)=104
104 % 10 = 4
So 22751-68-4 is a valid CAS Registry Number.

22751-68-4SDS

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 N,N'-dimethyl-1,2-diphenylethane-1,2-diamine

1.2 Other means of identification

Product number -
Other names 1,2-Ethanediamine,N,N'-dimethyl-1,2-diphenyl

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:22751-68-4 SDS

22751-68-4Relevant articles and documents

Substrate-Induced Dimerization Assembly of Chiral Macrocycle Catalysts toward Cooperative Asymmetric Catalysis

Ao, Yu-Fei,Guo, Hao,Meng, Wei,Wang, De-Xian,Wang, Qi-Qiang,Zhang, Lie-Wei,Zhou, Hao

supporting information, p. 2623 - 2627 (2020/02/04)

An artificial system of substrate-induced dimerization assembly of chiral macrocycle catalysts enables a highly cooperative hydrogen-bonding activation network for efficient enantioselective transformation. These macrocycles contain two thiourea and two chiral diamine moieties and dimerize with sulfate to form a sandwich-like assembly. The macrocycles then adopt an extended conformation and reciprocally complement the hydrogen-bonding interaction sites. Inspired by the guest-induced dynamic assembly, these macrocycles catalyze the decarboxylative Mannich reaction of cyclic aldimines containing a sulfamate heading group. The imine substrate can be activated toward nucleophilic attack of β-ketoacid by a cooperative hydrogen-bonding network enabled by sulfamate-induced dimerization assembly of the macrocycle catalysts. Highly efficient (>95 % yield in most cases) and enantioselective (up to 97.5:2.5 er) transformation of a variety of substrates using only 5 mol % macrocycle was achieved.

Dynamic Kinetic Resolution of Heterobiaryl Ketones by Zinc-Catalyzed Asymmetric Hydrosilylation

Hornillos, Valentín,Carmona, José A.,Ros, Abel,Iglesias-Sigüenza, Javier,López-Serrano, Joaquín,Fernández, Rosario,Lassaletta, José M.

supporting information, p. 3777 - 3781 (2018/03/21)

A diastereo- and highly enantioselective dynamic kinetic resolution (DKR) of configurationally labile heterobiaryl ketones is described. The DKR proceeds by zinc-catalyzed hydrosilylation of the carbonyl group, thus leading to secondary alcohols bearing axial and central chirality. The strategy relies on the labilization of the stereogenic axis that takes place thanks to a Lewis acid–base interaction between a nitrogen atom in the heterocycle and the ketone carbonyl group. The synthetic utility of the methodology is demonstrated through stereospecific transformations into either N,N-ligands or appealing axially chiral, bifunctional thiourea organocatalysts.

Indium trichloride: A versatile catalyst for the synthesis of fully saturated imidazoles

Kidwai, Mazaahir,Poddar, Priya Roona,Singhal, Kavita

experimental part, p. 886 - 892 (2009/12/24)

Ketimines are readily reduced to corresponding vicinal diamines using InCl3 and zinc followed by simple cyclization to fully saturated imidazoles with various aldehydes. InCl3 has been found to play an efficient catalytic role for th

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