(±)-(4aα,4bβ,10bβ,12aβ)-9-Bromo-2-methyl-1,2,3,4,4a,4b,5,6,10b,11,12,12a-dodecahydronaphtho[2,1-f]isoquinoline Formed from the Acid-Catalyzed Cyclization of 5-[2-(4-Bromophenyl)ethyl]-2-methyl-1,2,3,4,5,6,7,8-octahydroisoquinoline
作者:G. L. Patrick、A. C. Willis
DOI:10.1107/s0108270195004975
日期:1995.9.15
The title compound, C18H24BrN, was produced by treating 5-[2-(4-bromophenyl)ethyl]-2-methyl-1,2,3,4,5,6,7,8-octahydroisoquinoline with 48% hydrobromic acid. Cyclization took place between position 2 of the aromatic ring and position 6 of the octahydroisoquinoline ring, following acid-catalyzed isomerization of the double bond.
Synthesis of (±)-[4aα,4bβ,10bβ,12aβ]-9-halogeno-2-methyl-1,2,3,4,4a,4b,5,6,10b,11,12,12a-dodecahydronaphtho[2,1-ƒ]isoquinolines
作者:Graham L. Patrick
DOI:10.1039/p19950001273
日期:——
Treatment of 5-(2-arylethyl)-1,2,3,4,5,6,7,8-octahydroisoquinolines with 48% HBr resulted in isomerisation of the double bond and subsequent cyclisation at position 6 of the octahydroisoquinoline ring system to give (+/-)-[4a alpha,4b beta,10b beta,12a beta]-9-halogeno-2-methyl-1,2,3,4,4a,4b,5,6,10b,11,12,12a-dodecahydronaphtho-[2,1-f]isoquinolines. The products obtained represent novel analogues of aza-D-homoestranes. No reaction was observed with the corresponding 5,5-disubstituted octahydroisoquinolines. An X-ray crystallographic study of compound 10 (X = Br) is described.