One‐Pot Synthesis of Benzofuryl‐ Substituted Semicarbazides Under Microwave Irradiation

Xi‐Cun Wang Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, ChinaCorrespondence[email protected]

Lan‐Qin Chai Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China; College of Chemistry and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, China

Man‐Gang Wang Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

Zheng‐Qun Quan Gansu Key Laboratory of Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, China

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

Abstract

A series of asymmetric semicarbazides was synthesized by reactions of 2‐benzofuran isocyanate, which was prepared by Curtius rearrangement from 2‐benzofuroyl azide with acid hydrazide under microwave irradiation using a one‐pot procedure. Comparing to the conventional method, this method has the advantages of mild conditions, easy handling, and high yield.

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Acknowledgment

We are thankful for the financial support from the Natural Science Foundation of Gansu Province (ZS021‐A25‐006‐Z) and the Scientific and Technological Innovation Engineering Program of Northwest Normal University (NWNU‐KJCXGC‐02‐08).

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One‐Pot Synthesis of Benzofuryl‐ Substituted Semicarbazides Under Microwave Irradiation

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One‐Pot Synthesis of Benzofuryl‐ Substituted Semicarbazides Under Microwave Irradiation

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