Experimental study demonstrates regioselective protoborylation of terminal 1,4-diynes into branched alkenylboramides, highlighting a versatile platform for complex synthetic derivatizations.
A copper-catalyzed highly regioselective protoborylation of 1,4-diynes for the synthesis of alkenylboramide compounds was reported. Various (hetero)aryl and alkyl substituted terminal 1,4-diynes afforded the corresponding products in high yields and regioselectivities. The utility of alkenyl-B(dan) products was proven by their convenient derivatizations.
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Sun et al. (2022) studied this question.
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