Current Microwave Chemistry

Bimal K. Banik
Vice President of Research & Education Development
Community Health Systems of South Texas (CHSST)
Edinburg, TX


Microwave Assisted Rapid Synthesis of β -Nitroalcohols

Author(s): Pranjal P. Bora and Ghanashyam Bez

Affiliation: Department of Chemistry, North Eastern Hill University, Shillong-793022, India.

Keywords: Aldehyde, base-free, henry reaction, high temperature, microwave irradiation, β-nitroalcohol, nitroalkane, no side reaction, no diastereoselecivity, phosphate buffer, pH 7.0.

Graphical Abstract:


A major concern in base catalyzed Henry reaction for the synthesis of β-nitroalcohol from the reaction of aldehyde and nitroalkane is instantaneous formation of nitroalkene by dehydration, which in turn facilitates many side reactions. It is observed that rapid synthesis of β-nitroalcohol can be accomplished by carrying out the reaction in aqueous phosphate buffer at pH 7.0 under microwave irradiation without using any additional base. Use of microwave irradiation facilitated the formation of β-nitroalcohol within a very short time, yet no instantaneous formation of nitroalkene was observed even at 80 °C.

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Article Details

Page: [59 - 63]
Pages: 5
DOI: 10.2174/2213335601666140124205109