作者:Pierre Nicolet、Jean-Yves Sanchez、Ahmed Benaboura、Marc J. M. Abadie
DOI:10.1055/s-1987-27892
日期:——
1,1′-Biindenes 2, conveniently prepared from indenyllithiums by treatment with copper(II) chloride, are quantitatively isomerized to the corresponding 3,3′-biindenes 3 by heating in triethylamine/pyridine. Both d, l and meso isomers of 2 react to form 3, the rate of reaction of the meso form, however, is substantially faster.