InCl3 and ZrCl4 catalyzed regioselective reaction of 2,2′-dihydroxybiphenyl with terminal alkynes: synthesis of new dibenzo[d,f][1,3]dioxepines
作者:Graziella Tocco、Michela Begala、Gabriele Meli、Gianni Podda
DOI:10.1016/j.tet.2008.05.011
日期:2008.7
The regioselective reaction of 2,2′-dihydroxybiphenyl with terminal alkynes was found to be rapidly catalyzed by InCl3 and ZrCl4. The chemoselectivity of catalysts and alkynes for biphenol over water, together with the reaction mechanism are discussed in details.
发现2,2'-二羟基联苯与末端炔烃的区域选择性反应被InCl 3和ZrCl 4迅速催化。详细讨论了催化剂和炔烃对双酚在水上的化学选择性,以及反应机理。