Coumarin (5,6-Benzo-2-pyrone) Trapping of an HDDA-Benzyne
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