Citation: Qing Han Li. Microwave-assisted synthesis of asymmetric thiocarbonohydrazones under solvent-free conditions[J]. Chinese Chemical Letters, ;2009, 20(7): 793-796. doi: 10.1016/j.cclet.2009.03.013 shu

Microwave-assisted synthesis of asymmetric thiocarbonohydrazones under solvent-free conditions

Qing Han Li

College of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu 610041, China

Received Date: 28 November 2008

Fund Project: We thank the Natural Science Foundation of Southwest University for Nationalities (No.08NQZ002) for financial support.

Six new asymmetric thiocarbonohydrazones 3a-3f were synthesized from following steps:firstly hydrazine hydrate reacted with carbon disulfide to form thiocarbonohydrazide (1) under microwave irradiation. Then compound (1) reacted with ketone and different aldehydes step by step to give 3a-3f with excellent yields under solvent-free conditions using microwave irradiation. Their structures have been determined by elemental analysis, IR, MS and ¹H NMR data.
- Thiocarbonohydrazide,
- Asymmetric thiocarbonohydrazones,
- Microwave irradiation,
- Solvent-free,
- Organic synthesis
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