Synlett 2016; 27(08): 1241-1244
DOI: 10.1055/s-0035-1561559
letter
© Georg Thieme Verlag Stuttgart · New York

Indium(III) Chloride Catalyzed Synthesis of 5-Substituted 1H-Tetrazoles from Oximes and Sodium Azide

Sravanthi Devi Guggilapu
Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India   eMail: bathini.niperhyd@gov.in
,
Santosh Kumar Prajapti
Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India   eMail: bathini.niperhyd@gov.in
,
Atulya Nagarsenkar
Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India   eMail: bathini.niperhyd@gov.in
,
Keshav Kumar Gupta
Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India   eMail: bathini.niperhyd@gov.in
,
Bathini Nagendra Babu*
Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Hyderabad 500037, India   eMail: bathini.niperhyd@gov.in
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Publikationsverlauf

Received: 24. November 2015

Accepted after revision: 30. Dezember 2015

Publikationsdatum:
27. Januar 2016 (online)


Authors contributed equally.

Abstract

A simple and efficient protocol has been developed for the synthesis of 5-substituted 1H-tetrazole derivatives in good to excellent yields from various oximes and sodium azide by using indium(III) chloride as a Lewis acid catalyst. The present method has significant advantages, such as an inexpensive catalyst, low catalyst loading, mild reaction conditions, and simple experimental procedures.