ALKYLATION OF AZOLES
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United States of America Patent
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Issued Date -
Jul 2, 2015
app pub date -
May 24, 2013
filing date -
Jun 1, 2012
priority date (Note) -
Abandoned
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Abstract
In one aspect, methods for the alkylation of azoles are described herein. In some embodiments, a method for the C2 alkylation of an azole compound comprises providing an azolium salt comprising an N-allyl substituent, reacting the N-allyl azolium salt with an aldehyde to provide a reaction product mixture comprising a ketone and N-allyl-N,X-ketene acetal, and providing the C2-alkylated azole compound by Claisen rearrangement of the N-allyl-N,X-ketene acetal, wherein X is selected from the group consisting of S, N and O.
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