Synthesis and transformations of metallacycles 28. Reactions of allenes with EtAlCl_2 and Et_2AlCl catalyzed by Ti and Zr complexes

摘要

Catalytic cycloalumination of allenes with EtAlCl_2 in the presence of Ti or Zr complexes afforded methylidene- and alkyl(benzyl)idenealuminacyclopropanes and the corresponding aluminacyclopentanes, which were identified by analyzing the hydrolysis products. The reactions with the use of Et_2AlCl instead of EtAlCl_2 produced 1,2- and 1,4-dialuminum compounds.