Method for producing chiral or enantiomer-enriched beta-amino acids, aldehydes, ketones and gama-amino alcohols
申请人:Jary Walther
公开号:US20070123589A1
公开(公告)日:2007-05-31
The invention relates to an improved method for producing chiral or enantiomer-enriched beta amino acids, -aldehydes, -ketones and gamma-amino alcohols, during which an allyl amine of formula (I), in which: R1 represents an alkyl radical, a cycloalkyl radical, an alkyl radical, a heterocycle radical or a condensed or bridged ring system; R2, R3, R4 and R5, independent of one another, can represent H or an alkyl radical, a cyclo alkyl radical, an aryl radical, a heterocycle radical or a condensed or bridged ring system or radicals R1, R2, R3 and R4, together, form ring systems that can optionally contain one or more heteroatoms, whereby radicals R1, R2, R3, R4 and R5 can be substituted once or a number of times, and; R6 represents H or an N-protective group, is transformed; a) by ozonolysis in a solvent and; b) subsequent decomposition of the peroxide-containing solution by means of an oxidizing agent or reductive reprocessing, into the corresponding amino compound of formula (II), in which R1, R2, R3, R4 and R6 are defined as above, and; A, according to the reprocessing, represents a radical of formula COOH, —C(OH)R5 or —C(O)R5, whereby R5 is defined as above.
本发明涉及一种改进的方法,用于生产手性或对映体富集的β-氨基酸,-醛,-酮和γ-氨基醇,其中,式(I)的烯丙胺被转化,其中:R1代表烷基基团,环烷基基团,烷基基团,杂环基团或紧凑或桥接环系统;R2,R3,R4和R5独立地可以表示H或烷基基团,环烷基基团,芳基基团,杂环基团或紧凑或桥接环系统或基团R1,R2,R3和R4共同形成可以可选包含一个或多个杂原子的环系统,其中基团R1,R2,R3,R4和R5可以被取代一次或多次,而;R6代表H或N-保护基团;a)通过在溶剂中臭氧化;b)通过氧化剂或还原再处理分解含过氧化物的溶液,得到相应的式(II)氨基化合物,其中R1,R2,R3,R4和R6如上所定义,而;A根据再处理表示为COOH,-C(OH)R5或-C(O)R5的基团,其中R5如上所定义。