Overriding normal Friedel-Crafts regiochemistry in cycliacylation. Regiospecific carbodesilylation and Parham cyclization routes to 7-methoxy-1-indanols
SIBI, M. P.;SHANKARAN, K.;ALO, B. I.;HAHN, W. R.;SNIECKUS, V., TETRAHEDRON LETT., 28,(1987) N 26, 2933-2936
作者:SIBI, M. P.、SHANKARAN, K.、ALO, B. I.、HAHN, W. R.、SNIECKUS, V.
DOI:——
日期:——
MILLER, R. BRYAN;TSANG, TSZE, TETRAHEDRON LETT., 29,(1988) N 51, C. 6715-6718
作者:MILLER, R. BRYAN、TSANG, TSZE
DOI:——
日期:——
Overriding normal Friedel-Crafts regiochemistry in cycliacylation. Regiospecific carbodesilylation and Parham cyclization routes to 7-methoxy-1-indanols
Regiospecific synthesis of isoquinoline alkaloids. Use of arylsilanes in directed pictet-spengler cyclizations
作者:R.Bryan Miller、Tsze Tsang
DOI:10.1016/s0040-4039(00)82436-3
日期:——
ipso attack in the Pictet-Spengler reaction to control the regiochemistry in tetrahydroisoquinoline synthesis. In this manner, 2-(2-trimethylsilyl-3-methoxyphenyl)ethylamine was cyclized and N-methylated to give regiospecifically 8-methoxy-N-methyl-1,2,3,4-tetrahydroisoquinoline while the non-silylated compound gave only the 6-methoxy isomer.