Joint cycloalumination of ethylene and other unsaturated compounds with EtAlCl2 in the presence of Cp2ZrCl2. Synthesis of aluminacarbocycles
作者:A. G. Ibragimov、L. O. Khafizova、L. I. Khusainova、T. V. Tyumkina、U. M. Dzhemilev
DOI:10.1134/s1070428010040032
日期:2010.4
A procedure has been developed for the selective synthesis of five-membered aluminum-containing heterocycles, 2,3-dialkyl-1-ethylaluminacyclopent-2-enes, 3-alkyl-1-ethylaluminacyclopentanes, 2-alkylidene-1-ethylaluminacyclopentanes, and 3-alkyl-1-ethyl-2-methylidenealuminacyclopentanes, via joint cycloalumination of ethylene and other unsaturated compounds (acetylenes, olefins, and allenes) with EtAlCl2 in the presence of Cp2ZrCl2 as catalyst.
Synthesis of substituted 2,3-dihydro-1H-boroles by transmetalation of aluminacyclopent-2-enes with BF3·Et2O
作者:L. O. Khafizova、L. I. Khusainova、T. V. Tyumkina、U. M. Dzhemilev
DOI:10.1134/s1070428012060024
日期:2012.6
A procedure was developed for selective synthesis of 4,5-dialkyl-1-fluoro-2,3-dihydro-1H-boroles via transmetalation of the corresponding aluminacyclopent-2-enes with BF3 center dot Et2O. 4,5-Dialkyl-1-fluoro-2,3-dihydro-1H-boroles were isolated as complexes with BEtF2. 4-Alkyl-5-dimethylaminomethyl-1-fluoro-2,3-dihydro-1H-boroles were synthesized for the first time.
Ziegler; Grimm; Willer, Justus Liebigs Annalen der Chemie, 1939, vol. 542, p. 113