Competition between intra- and inter-molecular reactions of borates: a new route to 1,4-dihydro-1,4-distannines
作者:Susanna Kerschl、Bernd Wrackmeyer
DOI:10.1039/c39860001170
日期:——
The reaction of the system (E)-2-dimethyl(chloro)stannyl-3-diethylborylpent-2-ene (1)–LiNEt2 in hexane can be controlled to give 1,4-dihydro-1,1,2,4,4,5-hexamethyl-3,6-diethyl-1,4-distannine (3) in high yield, demonstrating the intermediacy of aminoborate (5) and the preference (under the reaction conditions) of intermolecular electrophilic attack at the B–C bond accompanied by final elimination of