[EN] RING CLOSING METATHESIS APPROACH TO PRODUCE PRECURSORS OF NYLON 11, 12, AND 13 FROM OLEIC ACID<br/>[FR] APPROCHE DE CYCLISATION PAR MÉTATHÈSE POUR PRODUIRE DES PRÉCURSEURS DE NYLON 11, 12 ET 13 À PARTIR D'ACIDE OLÉIQUE
申请人:UNIV TOLEDO
公开号:WO2016004299A1
公开(公告)日:2016-01-07
Provided herein is a method of producing C11, C12, and C13 nylon precursors from oleic acid or esters of oleic acid, the method involving amide formation, ring-closing metathesis, and hydrogenation. Further provided are the products of the method described. Provided herein is a method for producing a lactam, the method comprising the steps of converting oleic acid or an ester of oleic acid into an amide having a general formula of H3C-(CH2)rCH=CH-(CH2)rCONR-(CH2)n-CH=CH2, wherein n is 1, 2, or 3, and R is either hydrogen or benzyl; subjecting the amide to a ring-closing metathesis reaction to produce an intermediate having a general formula of -(CH2)rCONR-(CH2) n-CH=CH2-, wherein n is 1, 2, or 3, R is either hydrogen or benzyl, and both ends are connected to each other; and hydrogenating the intermediate to produce a saturated lactam. In certain embodiments, the saturated lactam has a formula of -NH-(CH2) 10-CO-.
本文提供了一种从油酸或油酸酯制备C11、C12和C13尼龙前体的方法,该方法涉及酰胺形成、环闭合重排和氢化。同时,本文还提供了所述方法的产物。本文提供了一种生产内酰胺的方法,包括将油酸或油酸酯转化为具有通式H3C-(CH2)rCH=CH-(CH2)rCONR-(CH2)n-CH=CH2的酰胺,其中n为1、2或3,R为氢或苄基;将酰胺经过环闭合重排反应,生成具有通式-(CH2)rCONR-(CH2)n-CH=CH2-的中间体,其中n为1、2或3,R为氢或苄基,两端相连;然后将中间体氢化,生成饱和内酰胺。在某些实施例中,饱和内酰胺的化学式为-NH-(CH2)10-CO-。