作者:Bhavani Shankar Chinta、Daniel Lee、Thomas R. Hoye
DOI:10.1021/acs.orglett.1c00342
日期:2021.3.19
Although the parent 2-pyrone is known to react with simple o-benzynes to produce naphthalene derivatives, there appear to be no examples of the successful reaction of coumarin, a benzo-annulated 2-pyrone analogue, with an aryne. We report such a process here using benzynes generated by the hexadehydro-Diels–Alder reaction to produce phenanthrene derivatives (i.e., benzo-annulated naphthalenes). Density
尽管已知母体 2-吡喃酮与简单的邻苯炔反应生成萘衍生物,但似乎没有香豆素(一种苯并环化的 2-吡喃酮类似物)与芳烃成功反应的例子。我们在此报道了这样一个过程,该过程使用由六氢-狄尔斯-阿尔德反应生成的苯炔来生产菲衍生物(即苯并环萘)。密度泛函理论计算用于帮助了解 2-吡喃酮和较慢的捕集剂香豆素之间的反应性差异。最后,邻苯炔本身[来自邻-(三甲基甲硅烷基)苯基三氟甲磺酸酯和CsF]与香豆素的反应被证明是可行的,尽管缓慢。