The regioselective reaction of 2,2 '-dihydroxybiphenyl with terminal alkynes was found to be rapidly catalyzed by InCl(3) and ZrCl(4). The chemoselectivity of catalysts and alkynes for biphenol over water, together with the reaction mechanism are discussed in details.
InCl3 and ZrCl4 catalyzed regioselective reaction of 2,2'-dihydroxybiphenyl with terminal alkynes: synthesis of new dibenzo[d,f][1,3]dioxepines
TOCCO, GRAZIELLA;BEGALA, MICHELA;
2008-01-01
Abstract
The regioselective reaction of 2,2 '-dihydroxybiphenyl with terminal alkynes was found to be rapidly catalyzed by InCl(3) and ZrCl(4). The chemoselectivity of catalysts and alkynes for biphenol over water, together with the reaction mechanism are discussed in details.
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