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    • 1. 发明授权
    • Process for producing phenoxyalkene derivative
    • 苯氧基衍生物的制备方法
    • US4267317A
    • 1981-05-12
    • US84161
    • 1979-10-12
    • Wataro KoikeTadashi SasugaChihiro Yazawa
    • Wataro KoikeTadashi SasugaChihiro Yazawa
    • A01N39/02A01N43/40C07C43/23C07C43/29C07C43/295C07C59/58C07C59/68C07C69/712C07C69/736C07C233/02C07C235/02C07C255/53C07C327/22C07D213/63C07D213/64C07D213/643C07C69/76C07C59/48C07C69/767
    • C07D213/643C07C327/00C07C43/23C07C59/68
    • A phenoxyalkene derivative having the formula ##STR1## wherein R represents a hydrogen atom, ##STR2## and Y and Z are the same or different and respectively represent a hydrogen atom, trifluoromethyl group, a halogen atom, a lower alkyl group, nitro group or cyano group; R.sub.1 represents a hydrogen atom or a lower alkyl group and R.sub.2 represents carboxyl, hydroxymethyl, allyloxycarbonyl, a lower alkoxycarbonyl, a lower haloalkoxycarbonyl, a S-lower alkylthiocarbonyl, carbamoyl, a N-lower alkylcarbamoyl or a N-phenylcarbamoyl group is produced by reacting a phenol compound having the formula ##STR3## with a dihalogen compound having the formula ##STR4## wherein R, R.sub.1 and R.sub.2 are defined above and X.sub.1 represents a halogen atom and X.sub.2 and X.sub.3 are different and respectively represent a hydrogen atom or a halogen atom, by a simultaneous reaction of an etherification and an unsaturated double bond formation, in the presence of a dehydrogenhalide agent and a polar solvent or a combination of a nonpolar solvent and a quaternary ammonium salt or a quaternary phosphonium salt.
    • 具有下式的苯氧基烯衍生物(III)其中R表示氢原子,Y和Z和Y和Z相同或不同,分别表示氢原子,三氟甲基,卤素原子,低级烷基, 硝基或氰基; R1表示氢原子或低级烷基,R2表示羧基,羟甲基,烯丙氧基羰基,低级烷氧基羰基,低级卤代烷氧基羰基,S-低级烷硫基羰基,氨基甲酰基,N-低级烷基氨基甲酰基或N-苯基氨基甲酰基, 具有式(I)的酚化合物与具有式“IMAGE”的二卤素化合物,其中R,R 1和R 2如上所定义,X 1表示卤素原子,X 2和X 3分别表示氢原子或 卤素原子,通过醚化和不饱和双键形成的同时反应,在脱卤化物剂和极性溶剂或非极性溶剂和季铵盐或季鏻盐的组合的存在下进行。
    • 8. 发明授权
    • Process for producing saccharin
    • 生产糖精的方法
    • US4057555A
    • 1977-11-08
    • US677256
    • 1976-04-15
    • Wataro KoikeTakahiro KimotoSadayoshi Matsui
    • Wataro KoikeTakahiro KimotoSadayoshi Matsui
    • C07D275/06C07D327/04
    • C07D275/06C07D327/04
    • 1,2-Benzoisothiazole-3-on-1, 1-dioxide having the formula ##STR1## wherein X represents hydrogen, halogen, nitro, lower alkyl or lower alkoxy and Y represents hydrogen, halogen, lower alkyl, or lower alkoxy is prepared by reacting phosgene with an o-sulfobenzoic acid compound having the formula: ##STR2## or an alkali metal salt or alkaline earth metal salt thereof in the presence of dimethylformamide, thereby producing a mixture of a dichlorotolylsultone and a chlorosulfonylbenzoylchloride; (b) reacting the reaction products of step (a) with an alcohol of the formula ROH wherein R represents a lower alkyl group; and then (c) reacting the product of step (b) with ammonia.
    • 其中X表示氢,卤素,硝基,低级烷基或低级烷氧基,Y表示氢,卤素,低级烷基或低级烷氧基的1,2-苯并异噻唑-3-基-1,2-二氧化物 通过在二甲基甲酰胺存在下使光气与具有下式的邻磺基苯甲酸化合物或其碱金属盐或碱土金属盐反应,由此制备二氯二磺酰基内酯与氯磺酰苯甲酰氯的混合物; (b)使步骤(a)的反应产物与式ROH的醇反应,其中R表示低级烷基; 然后(c)使步骤(b)的产物与氨反应。