Acetic acid functionalized ionic liquid systems: An efficient and recyclable catalyst for the regioselective ring opening of epoxides with NaN3

作者：Rezayati Sobhan^*; Salehi Elaheh; Hajinasiri Rahimeh; Abad Saeid Afshari Sharif

来源：Comptes Rendus Chimie, 2017, 20(5): 554-558.

DOI：10.1016/j.crci.2016.07.004

• Ionic liquids (ILs)
• Azidoalcohols
• Regioselectivity
• Bronsted acid catalyst
• Epoxides
• Imidazolium salts

In the present study, an environmentally benign, efficient, and solvent-free procedure was developed for the synthesis of 1,2-azidoalcohols by the regioselective ring opening of some epoxides with sodium azide (NaN3) in the presence of an acetic acid functionalized imidazolium salt [Cmmim]BF4 or [Cmmim]Br as a green and Bronsted acidic ionic liquid (BAIL) catalyst under mild and neutral reaction conditions at 60 degrees C. The remarkable features of this procedure are excellent regioselectivity, simple work-up procedure, high yields of products, short reaction times, and ease of recyclability of ionic liquids.

• 出版日期2017-5