[EN] STRECKER REAGENTS, THEIR DERIVATIVES, METHODS FOR FORMING THE SAME AND IMPROVED STRECKER REACTION<br/>[FR] RÉACTIFS DE STRECKER, LEURS DÉRIVÉS, PROCÉDÉS POUR LES FORMER ET RÉACTION DE STRECKER AMÉLIORÉE
申请人:NOWA PHARMACEUTICALS CO LTD
公开号:WO2011116530A1
公开(公告)日:2011-09-29
Strecker reagents, their derivatives and methods for forming the same and improved Strecker reaction are provided. The electrophiles for asymmetric Strecker reaction include achiral N-phosphorazides, N-phosphoramides, N-phosphonyl imines and their derivatives. The nucleophiles for asymmetric Strecker reaction include chiral BINOL-derived azides, amides, imines and their derivatives, the chiral and achiral diol-based cyanides and their derivatives, the chiral and achiral diamine-based cyanides and their derivatives, the chiral and achiral amino alcohol-based cyanides and their derivatives, the Strecker nucleophiles that are derived from chiral and achiral hydroxyl carboxylic acids and amino acids. Methods of forming the electrophile for asymmetric Strecker reaction comprise the reactions with steps of: a) synthesizing phosphoryl chloride from achiral diamine; b) synthesizing phosphorous azide; c) synthesizing phosphoramide; d) synthesizing the corresponding achiral N-phosphonyl imines. The asymmetric catalytic Strecker reaction of new achiral N-phosphonyl imines has been developed to give excellent enantioselectivity (up to >99%ee) and yields (up to >97%).
提供了Strecker试剂、它们的衍生物以及形成相同和改进的Strecker反应的方法。用于不对称Strecker反应的亲电试剂包括非手性N-磷酰胺、N-磷酰胺、N-磷酰亚胺及其衍生物。用于不对称Strecker反应的亲核试剂包括手性BINOL衍生的叠氮化物、酰胺、亚胺及其衍生物,手性和非手性二醇基氰化物及其衍生物,手性和非手性二胺基氰化物及其衍生物,手性和非手性氨基醇基氰化物及其衍生物,以及源自手性和非手性羟基羧酸和氨基酸的Strecker亲核试剂。形成不对称Strecker反应亲电试剂的方法包括以下步骤的反应:a) 从非手性二胺合成磷酰氯;b) 合成磷氮化物;c) 合成磷酰胺;d) 合成相应的非手性N-磷酰亚胺。新的非手性N-磷酰亚胺的不对称催化Strecker反应已经发展出优异的对映选择性(高达>99%ee)和产率(高达>97%)。