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公开(公告)号：US08841490B2
公开(公告)日：2014-09-23
申请号：US14144452
申请日：2013-12-30
发明人： Junfeng Hu , Donghai Yu , Qingqian Jiang , Yanjun Yang
摘要： A method for preparing 3,3-dimethylbutyraldehyde. The method includes: providing t-butyl chloride and vinyl acetate as raw materials, conducting a catalytic reaction between the t-butyl chloride and vinyl acetate to yield 1-chloro-3,3-dimethyl butyl acetate in the presence of a catalyst, the weight ratio of t-butyl chloride to vinyl acetate being 1:0.84-0.93; and controlling a temperature at between 100 and 110° C. for conducting hydrolytic disproportionation of 1-chloro-3,3-dimethyl butyl acetate in the presence of the catalyst to yield a mixture comprising 3,3-dimethylbutyraldehyde; and purifying the mixture by distillation to yield 3,3-dimethylbutyraldehyde, in which, the catalyst is aluminum trichloride, p-toluene sulphonic acid, or iron trichloride.
摘要翻译： 制备3,3-二甲基丁醛的方法。 该方法包括：以叔丁基氯和乙酸乙烯酯为原料，在叔丁基氯与乙酸乙烯之间进行催化反应，得到1-氯-3,3-二甲基丁酸乙酯，在催化剂存在下， 叔丁基氯与乙酸乙烯酯的重量比为1:0.84-0.93; 并控制温度在100至110℃之间，以在催化剂存在下进行1-氯-3,3-二甲基丁酸乙酯的水解歧化，得到包含3,3-二甲基丁醛的混合物; 并通过蒸馏纯化混合物，得到3,3-二甲基丁醛，其中催化剂为三氯化铝，对甲苯磺酸或三氯化铁。
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公开(公告)号：US20140114091A1
公开(公告)日：2014-04-24
申请号：US14144452
申请日：2013-12-30
发明人： Junfeng HU , Donghai YU , Qingqian JIANG , Yanjun YANG
IPC分类号： C07C45/41
摘要： A method for preparing 3,3-dimethylbutyraldehyde. The method includes: providing t-butyl chloride and vinyl acetate as raw materials, conducting a catalytic reaction between the t-butyl chloride and vinyl acetate to yield 1-chloro-3,3-dimethyl butyl acetate in the presence of a catalyst, the weight ratio of t-butyl chloride to vinyl acetate being 1: 0.84-0.93; and controlling a temperature at between 100 and 110° C. for conducting hydrolytic disproportionation of 1-chloro-3,3-dimethyl butyl acetate in the presence of the catalyst to yield a mixture comprising 3,3-dimethylbutyraldehyde; and purifying the mixture by distillation to yield 3,3-dimethylbutyraldehyde, in which, the catalyst is aluminum trichloride, p-toluene sulphonic acid, or iron trichloride.
摘要翻译： 制备3,3-二甲基丁醛的方法。 该方法包括：以叔丁基氯和乙酸乙烯酯为原料，在叔丁基氯与乙酸乙烯之间进行催化反应，得到1-氯-3,3-二甲基丁酸乙酯，在催化剂存在下， 叔丁基氯与乙酸乙烯酯的重量比为1:0.84-0.93; 并控制温度在100至110℃之间，以在催化剂存在下进行1-氯-3,3-二甲基丁酸乙酯的水解歧化，得到包含3,3-二甲基丁醛的混合物; 并通过蒸馏纯化混合物，得到3,3-二甲基丁醛，其中催化剂为三氯化铝，对甲苯磺酸或三氯化铁。
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