Ob. Zaporozhets et al., HYDROGENATION OF 6-ALKYL-2-(4'-BROMOPHENYL)INDOLIZINES AND 7-ALKYL-2-(4'-BROMOPHENYL)INDOLIZINES, Russian chemical bulletin, 42(7), 1993, pp. 1209-1210
Hydrogenation of 6- and 7-alkyl-2-(4'-bromophenyl)indolizines over rhe
nium heptasulfide proceeds with hydrodebromination to give a mixture o
f cis- and trans-isomers of 6- and 7-alkyl-2-phenylindolizidines.