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    • 1. 发明授权
    • Synthesizing thiocarbamic acid esters
    • 合成硫代氨基甲酸酯
    • US4497739A
    • 1985-02-05
    • US463553
    • 1983-02-03
    • Villiam GiroldiniCarlo Neri
    • Villiam GiroldiniCarlo Neri
    • C07B61/00B01J27/00C07C67/00C07C325/00C07C333/04C07D295/21C07C155/02C07D213/02
    • C07D295/21
    • A process for the synthesis of thiocarbamic acid esters by reacting amine compounds having a general formula ##STR1## wherein A is an arylene radical, simple or substituted by halogens hydrocarbon radicals, alkoxy groups, or can be an alkylene radical having from 1 to 15 carbon atoms, straight-line or branched, simple or substituted, whereas X can be hydrogen --NH.sub.2 or can be an H.sub.2 --N--Z group in which the bivalent function Z derives from alkyl, aryl, cycloaryl, alkaryl, aralkyl radicals which can be, in their turn, simple or substituted, R and R' equal or different can be hydrogen or alkyl, aryl, alkaryl radicals and otherwise, with carbon monoxide, in the presence of a catalyst composed of a metallic selenide. The thiocarbamic acid esters are known compounds that find applications as medicaments for plants and as intermediates for organic synthesis.
    • 通过使具有通式为“IMAGE”的胺化合物反应合成硫代氨基甲酸酯的方法,其中A是亚芳基,其简单或被卤素烃基,烷氧基取代,或者可以是具有1至15个碳原子的亚烷基 原子,直链或支链,简单或取代的,而X可以是氢-NH 2或可以是其中二价官能团Z衍生自烷基,芳基,环芳基,烷芳基,芳烷基的H 2 - NZ基团,其可以是, 它们的简单或取代的R和R'可以相同或不同,在由金属硒化物组成的催化剂的存在下,可以是氢或烷基,芳基,烷芳基等。 硫代氨基甲酸酯是已知的化合物,其可用作植物的药物和作为有机合成的中间体。
    • 2. 发明授权
    • Process for preparing substituted 2,3-dihydrobenzofuran
    • 取代2,3-二氢苯并呋喃的制备方法
    • US4564691A
    • 1986-01-14
    • US602215
    • 1984-04-19
    • Carlo NeriVilliam GiroldiniAntonio RinaldiMario TraversoniMario Clerici
    • Carlo NeriVilliam GiroldiniAntonio RinaldiMario TraversoniMario Clerici
    • C07D307/72C07C37/20C07C39/15C07C39/16C07C39/367C07D307/79C07D307/86
    • C07D307/79C07C37/20C07C39/16C07D307/86
    • A process is provided for preparing a substituted 2,3-dihydrobenzofuran of the general formula ##STR1## in which R.sub.a is hydrogen, halogen, alkyl, straight or branched having from 1 to 4 carbon atoms, aryl, alkaryl, --OH, --OR.sub.3, --N(R.sub.d).sub.2, where R.sub.3 and R.sub.d are alkyl, straight or branched having from 1 to 4 carbon atoms; R.sub.b is alkyl, straight or branched, having from 1 to 6 carbon atoms, aryl, alkaryl; and R.sub.c is hydrogen or the same as R.sub.b, by the rearrangement of a 1,1-bis(2-hydroxybenzene) alkyl and/or aryl-ethane, in the presence of catalytic amounts of a mineral acid or organic acid such as phosphoric, sulfuric or p-toluenesulfonic, at elevated temperatures from 180.degree. to 250.degree. C., and withdrawing the resulting products from the reaction mixture as they are formed. The starting 1,1-bis(2-hydroxybenzene) alkyl and/or aryl-ethane compounds may be obtained by the catalyzed reaction of a substituted biphenol with an aldehyde. The substituted 2,3-dihydrobenzofurans are useful in the manufacture of pesticides.
    • 提供了制备通式为“IMAGE”的取代2,3-二氢苯并呋喃的方法,其中Ra为氢,卤素,具有1-4个碳原子的直链或支链的烷基,芳基,烷芳基,-OH,-OR3 ,-N(Rd)2,其中R3和Rd是具有1至4个碳原子的直链或支链烷基; Rb是具有1-6个碳原子的直链或支链烷基,芳基,烷芳基; 和Rc是氢或与Rb相同,通过在催化量的无机酸或有机酸如磷酸的存在下重新配置1,1-双(2-羟基苯)烷基和/或芳基 - 乙烷, 硫酸或对甲苯磺酸,在180℃至250℃的升高温度下,在反应混合物形成时从所得反应混合物中取出。 起始的1,1-双(2-羟基苯)烷基和/或芳基 - 乙烷化合物可以通过取代的联苯酚与醛的催化反应获得。 取代的2,3-二氢苯并呋喃可用于制造农药。