1,2-Dihydrobenzocyclobutene (‘benzocycflobutene’): lithiation, and the preparation of some 3-substituted derivatives
作者:C. Eaborn、A. A. Najam、D. R. M. Walton
DOI:10.1039/p19720002481
日期:——
-stannane has given samples of 1- and 3-trimethylsilyl- and -stannyl-1,2-dihydrobenzocyclobutene and 1,2-bis(trimethylsilyl)-1,2-dihydrobenzocyclobutene. Cleavage of the 3-trimethyl-silyl- and -stannyl derivatives with bromine and with iodine monochloride has given 3-bromo- and 3-iodo-1,2-dihydrobenzocyclobutene, and cleavage of the 3-trimethylsilyl compound with mercury-(II) acetate has given the 3-acetoxymercuri-compound