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    • 62. 发明公开
    • 카복실산 클로라이드 화합물의 제조방법
    • 羧酸氯化物生产方法
    • KR1020080114771A
    • 2008-12-31
    • KR1020087023770
    • 2007-03-29
    • 아지노모토 가부시키가이샤
    • 이시카와다쓰야콘도우쇼우이치다카하시사토지
    • C07C51/60C07C61/15C07C233/63C07B53/00
    • C07C231/02C07B53/00C07C51/60C07C2601/14C07C61/15C07C233/63
    • Disclosed is a process for production of a carboxylic acid chloride compound represented by the general formula (III), which comprises reacting a carboxylic acid compound represented by the general formula (I) with an acid chlorinating agent in the presence of an urea compound represented by the general formula (II). The process enables to produce the carboxylic acid chloride compound with a high purity or in high yield at a high reaction speed. The carboxylic acid chloride compound produced by the process is useful as an intermediate for the production of a D-penylalanine derivative which is used as a therapeutic agent for diabetes. (I) wherein the ring A represents a cyclohexane ring or a benzene ring; and R1 represents an alkyl group having 1 to 6 carbon atoms. (II) wherein R2 to R6 independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, or R5 and R6 may be bound to each other, and in this case,-R5-R6-represents an ethylene group or the like. (III) ® KIPO & WIPO 2009
    • 公开了一种制备由通式(III)表示的羧酰氯化合物的方法,该方法包括使通式(I)表示的羧酸化合物与酸式氯化剂在脲化合物 通式(II)。 该方法能够以高反应速度产生高纯度或高收率的羧酰氯化合物。 通过该方法制备的羧酰氯化合物可用作生产用作糖尿病治疗剂的D- penylalanine衍生物的中间体。 (I)其中环A表示环己烷环或苯环; R1表示碳原子数1〜6的烷基。 (II)其中R2至R6独立地表示氢原子或具有1至3个碳原子的烷基,或者R5和R6可以彼此结合,在这种情况下,-R 5 -R 6 - 表示亚乙基或 喜欢。 (III)®KIPO&WIPO 2009