Green Synthetic Method for 1,5‐Disubstituted Carbohydrazones

Zheng Li Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, ChinaCorrespondence[email protected]

Wei Zhu Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

Jinlan Yu Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

Xuelin Ma Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

Zhong Lu Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

Shuxiu Xiao Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

Abstract

A green synthetic method for 1,5‐disubstituted carbohydrazones is described. The reaction of dimethyl carbonate with hydrazine hydrate first gave carbohydrazide, which further reacted with various aromatic aldehydes or aliphatic ketones under solvent‐free conditions to efficiently afford 1,5‐disubstituted carbohydrazone. This protocol has the advantages of using nontoxic dimethyl carbonate as starting material, no use of organic solvents, short reaction time, high yield, and simple workup procedure.

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Acknowledgment

The authors thank the Chunhui Project of Ministry of Education of China (Z2004‐1‐62034) for the financial support of this work.

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Green Synthetic Method for 1,5‐Disubstituted Carbohydrazones

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Green Synthetic Method for 1,5‐Disubstituted Carbohydrazones

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