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    • 8. 发明授权
    • Processes for producing epsilon caprolactams
    • 生产ε己内酰胺的方法
    • US5962680A
    • 1999-10-05
    • US839576
    • 1997-04-15
    • Thomas Carl EisenschmidJohn Robert BriggsDiane Lee PackettKurt Damar OlsonJohn Michael Maher
    • Thomas Carl EisenschmidJohn Robert BriggsDiane Lee PackettKurt Damar OlsonJohn Michael Maher
    • B01J31/24C07B61/00C07D201/02C07D201/08C07D223/10C08G69/02C08G69/14C08G69/36
    • C07D201/02C07D201/08C08G69/02C08G69/14C08G69/36Y02P20/582
    • This invention relates in part to processes for producing one or more substituted or unsubstituted epsilon caprolactams, e.g., epsilon caprolactam, which comprises: (a) subjecting one or more substituted or unsubstituted alkadienes to hydroxycarbonylation in the presence of a hydroxycarbonylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, and neutralization with a base to produce one or more substituted or unsubstituted pentenoic acid salts; (b) subjecting said one or more substituted or unsubstituted pentenoic acid salts to hydroformylation in the presence of a hydroformylation catalyst, e.g., a metal-organophosphorus ligand complex catalyst, to produce one or more substituted or unsubstituted formylvaleric acid salts and/or one or more substituted or unsubstituted epsilon caprolactam precursors; and (c) subjecting said one or more substituted or unsubstituted formylvaleric acid salts and/or said one or more substituted or unsubstituted epsilon caprolactam precursors to reductive amination in the presence of a reductive amination catalyst and cyclization optionally in the presence of a cyclization catalyst to produce said one or more substituted or unsubstituted epsilon caprolactams. This invention also relates in part to reaction mixtures containing one or more substituted or unsubstituted epsilon caprolactams as the principal product(s) of reaction.
    • 本发明部分地涉及用于制备一种或多种取代或未取代的ε-己内酰胺(例如ε-己内酰胺)的方法,其包括:(a)在羟基羰基化催化剂存在下使一种或多种取代或未取代的烷撑二醇进行羟基羰基化, 金属有机磷配体络合物催化剂,并用碱中和以产生一种或多种取代或未取代的戊烯酸盐; (b)使所述一种或多种取代或未取代的戊烯酸盐在加氢甲酰化催化剂(例如金属 - 有机磷配体配合物催化剂)存在下进行加氢甲酰化,以产生一种或多种取代或未取代的甲酰基戊酸盐和/或一种或多种 更多取代或未取代的ε己内酰胺前体; 和(c)在还原胺化催化剂存在下使所述一种或多种取代或未取代的甲酰基戊酸盐和/或所述一种或多种取代或未取代的己内酰胺前体进行还原胺化,任选地在环化催化剂存在下进行环化, 产生所述一种或多种取代或未取代的ε己内酰胺。 本发明还部分涉及含有一种或多种取代或未取代的ε-己内酰胺作为反应主要产物的反应混合物。