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    • 1. 发明申请
    • PROCESS FOR PRODUCTION OF DIALCOHOL, PROCESS FOR PRODUCTION OF ALLYLHALIDE COMPOUND, AND ALLYLCHLORIDE COMPOUND
    • 生产二醇的方法,生产全氟化合物的方法和全氯化合物
    • US20110004028A1
    • 2011-01-06
    • US12920669
    • 2009-03-02
    • Toshiya Takahashi
    • Toshiya Takahashi
    • C07C29/16C07C17/354C07C21/215
    • C07C29/17C07C17/16C07C21/215C07C29/42C07C33/02C07C33/048
    • Disclosed are: an advantageous production process for a carotenoid intermediate; and others. Specifically disclosed are: a process for producing a dialcohol represented by formula (1), which is characterized by reacting a Grignard reagent with an acetylene gas in an organic solvent at a temperature of 30° C. or higher to prepare an ethynyl magnesium halide and subsequently reacting the ethynyl magnesium halide with methacrolein; a process for producing an allylhalide compound represented by formula (3) [wherein X represents a halogen atom: and the wavy line means the compound is either of E/Z geometric isomers or a mixture thereof], which is characterized by reducing a dialcohol represented by formula (1) with hydrogen to produce a triene alcohol represented by formula (2) [wherein the wavy line is as defined above] and halogenating the triene alcohol; and an allylchloride compound represented by formula (4) [wherein the wavy line is as defined above].
    • 公开了:类胡萝卜素中间体的有利生产方法; 和别的。 具体公开的是:制备由式(1)表示的二醇的方法,其特征在于在30℃或更高的温度下使格氏试剂与乙炔气在有机溶剂中反应,制备乙炔基卤化镁和 随后使乙炔基卤化镁与甲基丙烯醛反应; 一种由式(3)表示的烯丙基卤化合物的制备方法[其中X表示卤素原子,波浪线表示化合物是E / Z几何异构体或其混合物),其特征在于还原二醇 通过式(1)与氢反应以制备由式(2)表示的三烯醇[其中波浪线如上所定义]并卤化三烯醇; 和由式(4)表示的烯丙基氯化物[其中波浪线如上所定义]。