Method for producing biphenyl derivative
    61.
    发明授权
    Method for producing biphenyl derivative 有权
    联苯衍生物的制备方法

    公开(公告)号:US08722942B2

    公开(公告)日:2014-05-13

    申请号:US12377892

    申请日:2007-10-12

    摘要: A method produces a biphenyl derivative, with an industrially high yield and excellent productivity, by use of a raw material which is low in cost and toxicity. The method for producing the biphenyl derivative represented by Formula (1) is characterized in that a chlorine atom in a benzene derivative represented by Formula (2) reacts with magnesium metal to convert the benzene derivative into a Grignard reagent, and then the Grignard reagent is subjected to a coupling reaction in the presence of a catalyst and a dichloropropane: (wherein A represents at least one selected from alkyl groups, alkoxy groups, alkoxymethyl groups, a vinyl group, phenyl groups and chlorine, and n represents an integer of 1 to 4).

    摘要翻译: 通过使用低成本,低毒性的原料,能够得到工业上高产率,优异的生产率的联苯衍生物。 由式(1)表示的联苯衍生物的制造方法的特征在于,式(2)表示的苯衍生物中的氯原子与镁金属反应,将苯衍生物转化成格氏试剂,然后将格氏试剂 在催化剂和二氯丙烷的存在下进行偶联反应:(其中A表示选自烷基,烷氧基,烷氧基甲基,乙烯基,苯基和氯中的至少一种,n表示1〜 4)。

    Method for the preparation of cis-nonen-6-yl chloride
    68.
    发明授权
    Method for the preparation of cis-nonen-6-yl chloride 失效
    顺式六烯丙基氯的制备方法

    公开(公告)号:US4355193A

    公开(公告)日:1982-10-19

    申请号:US253061

    申请日:1981-04-10

    CPC分类号: C07C17/2632

    摘要: The invention provides a novel and efficient method for the synthetic preparation of cis-nonen-6-yl chloride which is a useful intermediate compound for the syntheses of, for example, cis-nonen-6-yl acetate, cis-nonen-6-ol, cis-nonen-6-al and the like as flavors as well as cis-dodecen-9-yl acetate and cis-tetradecen-11-yl acetate known as sexual pheromone compounds of several noxious insects. The inventive method comprises reacting 1-bromo-3-chloropropane with the Grignard reagent of cis-hexen-3-yl chloride which is a chlorination product of cis-hexen-3-ol known by a trivial name of leaf alcohol. The reaction is preferably carried out in tetrahydrofuran in the presence of a catalyst which may be lithium copper dichloride or dilithium copper tetrachloride at 0.degree. to 40.degree. C.

    摘要翻译: 本发明提供了一种用于合成制备顺式 - 壬烯-6-基氯的新型和有效的方法,其是用于合成例如顺式 - 壬烯-6-基乙酸酯,顺式 - 壬烯-6-基氯化物的有用的中间体化合物, 醇,顺式 - 壬烯-6-al等作为香料,以及称为几种害虫的性信息素化合物的顺式十二碳烯-9-乙酸酯和顺式十四碳烯-11-基乙酸酯。 本发明的方法包括使1-溴-3-氯丙烷与顺式 - 己烯-3-基氯的格氏试剂反应,该顺式己烯-3-基氯是通过平凡的叶醇知道的顺式己烯-3-醇的氯化产物。 该反应优选在四氢呋喃中,在催化剂存在下,其可以是二氯化铜或四氯化铜锂,在0-40℃下进行。