Synlett 2014; 25(6): 835-842
DOI: 10.1055/s-0033-1340844
letter
© Georg Thieme Verlag Stuttgart · New York

Magnetic Nano Fe3O4 Catalyzed Solvent-Free Stereo- and Regioselective ­Aminolysis of Epoxides by Amines; a Green Method for the Synthesis of β-Amino Alcohols

Amit Kumar
Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector 81, SAS Nagar, Mohali, Knowledge City, Punjab 140306, India   Fax: +91(172)2240266   eMail: sababu@iisermohali.ac.in
,
Ramarao Parella
Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector 81, SAS Nagar, Mohali, Knowledge City, Punjab 140306, India   Fax: +91(172)2240266   eMail: sababu@iisermohali.ac.in
,
Srinivasarao Arulananda Babu*
Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Manauli P.O., Sector 81, SAS Nagar, Mohali, Knowledge City, Punjab 140306, India   Fax: +91(172)2240266   eMail: sababu@iisermohali.ac.in
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Publikationsverlauf

Received: 11. Dezember 2013

Accepted after revision: 28. Januar 2014

Publikationsdatum:
06. März 2014 (online)


Abstract

We report the use of magnetic nano Fe3O4 as a mild heterogeneous catalyst for the aminolysis of epoxides with amines. The approach constitutes a green method for the formation of a variety of β-amino alcohols with very high stereo- and regioselectivity under solvent-free and ambient reaction conditions. The aminolysis of chiral epoxides with amines gave the corresponding chiral β-amino alcohols with complete inversion of stereochemistry. The magnetic nano Fe3O4 catalyst can be easily recovered and recycled.

Supporting Information