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93138-64-8

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93138-64-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93138-64-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,1,3 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 93138-64:
(7*9)+(6*3)+(5*1)+(4*3)+(3*8)+(2*6)+(1*4)=138
138 % 10 = 8
So 93138-64-8 is a valid CAS Registry Number.

93138-64-8Downstream Products

93138-64-8Relevant articles and documents

Nickel-Catalyzed N-Alkylation of Acylhydrazines and Arylamines Using Alcohols and Enantioselective Examples

Yang, Peng,Zhang, Caili,Ma, Yu,Zhang, Caiyun,Li, Aijie,Tang, Bo,Zhou, Jianrong Steve

, p. 14702 - 14706 (2017)

A borrowing-hydrogen reaction between amines and alcohols is an atom-economic way to prepare alkylamines, ideally with water as the sole byproduct. Herein, nickel catalysts are used for direct N-alkylation of hydrazides and arylamines using racemic alcohols. Moreover, a nickel catalyst of (S)-binapine was used for an asymmetric N-alkylation of benzohydrazide with racemic benzylic alcohols.

Method for preparing secondary amine or N'-alkyl hydrazide through nickel catalysis N-alkylation reaction

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Paragraph 0099; 0100; 0101; 0102; 0103, (2017/12/27)

The invention discloses a method for preparing secondary amine or N'-alkyl hydrazide through nickel catalysis N-alkylation reaction. Amine or hydrazide is used as raw materials; alcohol is used as an alkylation agent; N-alkylation reaction is performed under the nickel catalysis condition; the secondary amine or N'-alkyl hydrazide is prepared. Compared with the prior art, the method provided by the invention has the advantages that the N-alkylation reaction is performed; active catalysts can be generated in situ by nickel salt and phosphine ligands; the preparation of catalysts in advance is avoided; the operation is simple and convenient; the experiment steps and the experiment cost are reduced. Cheap nickel is used as the catalysts; the consumption of the catalysts is low; the use of expensive and high-toxicity precious metal is avoided; the experiment cost is further reduced; the hydrogen borrowing strategy is utilized; the N'-alkylation of the hydrazide is realized for the first time; byproducts only contain water. Compared with other preparation methods, the method has the advantage that the reaction environment-friendly performance is realized.

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