Journal
TETRAHEDRON LETTERS
Volume 48, Issue 10, Pages 1721-1724Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.01.050
Keywords
1-substituted-1H-1,2,3,4-tetrazoles; ionic liquid; substituted amine; triethyl orthoformate; sodium azide
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An efficient synthesis leading directly to 1-substituted-1H-1,2,3,4-tetrazoles from easily available amines and sodium azide in stoichiometric proportions using a room-temperature ionic liquid, namely, 1-n-butylimidazolium tetrafluoroborate in excellent yields is described. The inherent Bronsted acidity and high polarity of the IL results in a significant enhancement in the reaction rate. (c) 2007 Elsevier Ltd. All rights reserved.
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