Abstract
Optically active two and three layer nitrogen ligands were synthesized by reacting the N-BOC-protected aminoalcohols (1S,2S)-2-amino-1 -phenyl-1,3-propanediol and (S)-2-amino-1,4-butanediol with chloromethyl-benzoic acid chlorides. Expansion was carried out at the chlo-romethyl substituents via nucleophilic substitution with N-methylated (R)-1-phenylethylamine. The deprotected substances were N-benzylated and reacted with 6,6′-bis(bromomethyl)-2,2′-bipyridine to give the new optically active expanded bipyridine ligands.
摘要
通过将N-BOC保护的
氨基醇(1S,2S)-2-
氨基-
1-苯基-1,3-丙二醇和(S)-2-
氨基-
1,4-丁二醇与
氯甲基
苯甲酸氯化物反应合成了光学活性的两层和三层氮
配体。通过
氯甲基取代基的核苷亲核取代与N-甲基化(R)-1-苯基
乙胺进行扩展。脱保护物质被N-苄基化,并与6,6'-双(
溴甲基)-
2,2'-联吡啶反应,形成了新的光学活性扩展联
吡啶配体。