Construction of (Dihydro)naphtho[1,8-<i>bc</i>]pyrans via Rh(III)-Catalyzed Twofold C–H Activation of Benzoylacetonitriles
作者:Panjie Hu、Ying Zhang、Youwei Xu、Shuang Yang、Bingxian Liu、Xingwei Li
DOI:10.1021/acs.orglett.8b00420
日期:2018.4.20
Rh(III)-catalyzed cascade C–H activation of benzoylacetonitriles and annulation with sulfoxonium ylides was realized, leading to selective synthesis of naphthols, 2,3-dihydronaphtho[1,8-bc]pyrans, and naphtho[1,8-bc]pyrans. This step-economic reaction proceeded efficiently under mild and redox-neutral conditions via multiple C–H activations.
铑(III)和benzoylacetonitriles环与氧锍叶立德催化的级联C-H活化实现,导致萘酚的选择性合成,2,3-二氢萘并[1,8- BC ]吡喃,和萘并[1,8- BC ] pyrans。在轻度和氧化还原中性条件下,通过多次C–H激活,这种逐步经济反应得以有效进行。