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    • 1. 发明申请
    • RING CLOSING METATHESIS APPROACH TO PRODUCE PRECURSORS OF NYLON 11, 12, AND 13 FROM OLEIC ACID
    • 生产尼龙前列腺素11,12和13的环状封闭细胞生物学方法
    • WO2016004299A1
    • 2016-01-07
    • PCT/US2015/038976
    • 2015-07-02
    • THE UNIVERSITY OF TOLEDO
    • YAMAMOTO, KanaVIAMAJALA, SridharVARANASI, SasidharMUDIYANSELAGE, Ajith YapaABEL, Godwin
    • C07C6/04
    • C07D225/02
    • 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生产C11,C12和C13尼龙前体的方法,涉及酰胺形成,闭环复分解和氢化的方法。 还提供了所述方法的产物。 本发明提供了制备内酰胺的方法,该方法包括以下步骤:将油酸或油酸酯转化为通式为H3C-(CH2)rCH = CH-(CH2)rCONR-(CH2) n-CH = CH 2,其中n为1,2或3,并且R为氢或苄基; 使酰胺进行闭环复分解反应以产生具有通式为 - (CH 2)r CONR-(CH 2)n -CH = CH 2 - 的中间体,其中n为1,2或3,R为氢或 苄基,并且两端彼此连接; 并氢化中间体以产生饱和内酰胺。 在某些实施方案中,饱和内酰胺具有式-NH-(CH 2)10 -CO-的式。