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    • 2. 发明授权
    • Process for producing aminophenyl-.beta.-hydroxyethylsulfone
    • 制备氨基苯基-β-羟乙基砜的方法
    • US4612394A
    • 1986-09-16
    • US477443
    • 1983-03-21
    • Norio KoteraKazuhiro TadaShinzaburo MasakiKunihisa GotoTatsuo Kaneoya
    • Norio KoteraKazuhiro TadaShinzaburo MasakiKunihisa GotoTatsuo Kaneoya
    • B01J23/74B01J25/02B01J27/20C07C317/36C07C85/11
    • C07C323/00C07C317/00
    • A process for producing aminophenyl-.beta.-hydroxyethylsulfone of the formula (I), ##STR1## which comprises the following steps: (1) condensing nitrohalobenzene with mercaptoethanol in the presence of an alkali hydroxide and at least one reaction medium selected from N-alkyl-substituted amides and sulfoxides to produce mononitrophenyl-.beta.-hydroxyethylsulfide of the formula (II): ##STR2## (2) oxidizing the mononitrophenyl-.beta.-hydroxyethylsulfide (II) to produce mononitrophenyl-.beta.-hydroxyethylsulfone of the formula (III): ##STR3## and (3) reducing the mononitrophenyl-.beta.-hydroxyethylsulfone to produce the aminophenyl-.beta.-hydroxyethylsulfone of the formula (I). This compound is useful as an intermediate for aminophenyl-.beta.-sulfatoethylsulfone represented by the following formula: ##STR4## which is an important intermediate for vinyl sulfone type reactive dyes largely used for dyeing cellulose fiber materials.
    • (I)的氨基苯基-β-羟基乙基砜的制备方法,其包括以下步骤:(1)在碱金属氢氧化物和至少一种选自以下的反应介质的存在下将硝基卤苯与巯基乙醇缩合 N-烷基取代的酰胺和亚砜,以制备式(II)的单硝基苯基-β-羟乙基硫化物:(II)(2)(2)氧化单硝基苯基-β-羟乙基硫醚(II)以制备单硝基苯基-β-羟乙基硫醚 式(III):(III)和(3)还原单硝基苯基-β-羟基乙基砜以制备式(I)的氨基苯基-β-羟基乙基砜。 该化合物可用作由下式表示的氨基苯基-β-磺基乙基砜的中间体:作为主要用于染色纤维素纤维材料的乙烯基砜型活性染料的重要中间体的“IMAGE”。
    • 10. 发明授权
    • Thermally stabilized butadiene resins containing a hindered phenolic
acrylate or methacrylate
    • 含有受阻酚丙烯酸酯或甲基丙烯酸酯的热稳定丁二烯树脂
    • US4774274A
    • 1988-09-27
    • US64461
    • 1987-06-22
    • Takeshi TakataShin-ichi YachigoTatsuo KaneoyaHaruki OkamuraYukoh Takahashi
    • Takeshi TakataShin-ichi YachigoTatsuo KaneoyaHaruki OkamuraYukoh Takahashi
    • C08K5/134C08K5/10
    • C08K5/134
    • A process for producing a bisphenol compound useful as deterioration preventor capable of stabilizing organic substances against the decompositions caused by heat, light and oxygen, represented by the following general formula: ##STR1## wherein R.sub.1 represents alkyl group having 1 to 3 carbon atoms, alkenyl group having 2 to 4 carbon atoms, phenyl group or 2-phenylethenyl group; R.sub.2 represents alkyl group having 1 to 5 carbon atoms, or cyclohexyl group; R.sub.3 represents alkyl group having 1 to 9 carbon atoms, cyclohexyl group or phenyl group; and R.sub.4 represents alkyl group having 1 to 11 carbon atoms or phenyl group, which comprises reacting a carboxylic acid represented by the following general formula: ##STR2## wherein R.sub.1 is as defined above, with a bisphenol compound represented by the following general formula: ##STR3## wherein R.sub.2, R.sub.3 and R.sub.4 are as defined above, by the use of a halogenating agent in the presence of a dehydrohalogenating agent, as well as butadiene polymer compositions containing said bisphenol compounds.
    • 一种生产双酚化合物的方法,该双酚化合物可用作能够稳定有机物质以抵抗由热,光和氧引起的分解引起的降解防止剂,由以下通式表示:其中R 1表示具有1至3个碳原子的烷基,烯基 具有2至4个碳原子的基团,苯基或2-苯基乙烯基; R2表示具有1至5个碳原子的烷基或环己基; R3表示具有1至9个碳原子的烷基,环己基或苯基; R 4表示具有1〜11个碳原子的烷基或苯基,其包括使由以下通式表示的羧酸与下述通式表示的双酚化合物反应:其中R 1如上定义。 其中R2,R3和R4如上定义,在脱卤化氢剂存在下使用卤化剂,以及含有所述双酚化合物的丁二烯聚合物组合物。