Primary, secondary and tertiary γ-amino alcohols 4, 5, 7 and 9 and 1,3-diamine 6 were synthesized from (+)- and (−)-α-pinene 1 via chiral N-Boc β-amino ester 3a and carboxamide 3b. The amino alcohols and diamine obtained were applied as chiral catalysts in the enantioselective addition of diethylzinc to aromatic aldehydes, resulting in chiral 1-aryl-1-propanols. The first evidence of the substituent-dependent
伯,仲和叔γ-
氨基醇4,5,7和9和1,3-二胺6购自(+)合成-和( - ) - α
蒎烯1通过手性Ñ -Bocβ
氨基酯3A和羧酰胺3b。所获得的
氨基醇和二胺在将
二乙基锌对映体选择性加成到芳族醛中时用作手性催化剂,得到手性的1-芳基-1-
丙醇。观察到1,3-
氨基醇催化剂的取代基依赖性对映选择性的第一个证据,并且该现象是通过从头算
水平使用分子模型来解释的。