ON THE INTERMEDIACY OF BICYCLOHEPT-6-YNE, A CYCLOBUTYNE DERIVATIVE

Article abstract of DOI:10.1016/S0040-4039(01)80013-7

Treatment of 6-chloro-, 6-bromo-, and 6-iodobicyclo<3.2.0>hept-6-ene, respectively, with LDA in the presence of LiSPh led to identical mixtures of thioethers 3e and 4a.The results are rationalized by the assumption that cyclobutyne 2 and carbene 7 are for