An unprecedented domino synthesis of tetrahydrobenzofuran-4-ones is described implicating chemoselective alkylation of various 1,3-cyclohexanediones with bromocrotonate or crotonitrile followed by oxa-Michael cyclization. Further transformations of this core to reach molecular diversity are also presented.
介绍了一种前所未有的多米诺合成四氢
苯并呋喃-4-酮的方法,该方法涉及用
溴代
巴豆酸盐或
巴豆腈对各种 1,3-Cyclohexanediones 进行
化学选择性烷基化,然后进行 oxa-Michael 环化。此外,还介绍了该核心的进一步转化,以实现分子多样性。