A hydroxymethylated polystyrene resin has been converted to its vinylsulfonylethyl ether (1) by DBU catalyzed addition of the hydroxy groups to divinyl sulfone. The support obtained was used to convert 5- and 6-(tetrahydropyran-2-yloxy)-1,2,3,4-tetrahydroisoquinolines to a set of N-alkylated tetrahydroisoquinolines bearing various 5- and 6-alkoxy substituents (5a-m). The synthesis involved attachment
羟甲基化的聚
苯乙烯树脂已通过
DBU催化将羟基基团加到
二乙烯基砜中而转化为其
乙烯基磺酰基
乙基醚(1)。获得的载体用于将5-和6-(
四氢吡喃-2-基氧基)-1,2,3,4-
四氢异喹啉转化为一组带有各种5-和6-烷氧基取代基的N-烷基化
四氢异喹啉(5a-m )。合成包括通过迈克尔加成反应将起始原料连接到载体上,酸催化除去
四氢吡喃基保护基,Mitsunobu醚化反应,与烷基胺季
铵化,以及与
二异丙基乙胺在溶液中释放。