One-pot synthesis of borolanes by reaction of aluminacyclopentanes with BF3·Et2O
摘要:
A selective procedure was developed for the synthesis of substituted borolanes via transmetalation with BF3 center dot Et2O of 3-alkyl-1-ethylaluminacyclopentanes obtained from the corresponding terminal olefins and AlEt3 in the presence of Cp2ZrCl2 as a catalyst. 3-Substituted 1-fluoroborolanes were isolated and identified as 1: 1 complexes with EtBF2.