Synthesis of (±)-pseudoheliotridane by allylboration of 1-pyrroline
作者:M. E. Gurskii、T. V. Potapova、Yu. N. Bubnov
DOI:10.1007/bf02495581
日期:1998.7
Reaction of tricrotylborane with 1-pyrroline proceeds stereoselectively to give (1R*,1'S*)-2-(1-methylallyl)pyrrolidine. The latter was converted to the pyrrolizidine alkaloid (+/-)-pseudoheliotridane through hydroboration-oxidation-intra molecular cyclization.