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    • 91. 发明授权
    • Preparation of aldehydes
    • 醛的制备
    • US5371297A
    • 1994-12-06
    • US121440
    • 1993-09-16
    • Rolf Fischer
    • Rolf Fischer
    • C07C45/67C07C45/54
    • C07C45/676
    • A process for the preparation of aldehydes of the general formula I ##STR1## in which R.sup.1, R.sup.2 denote hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.8 cycloalkyl, acyl, aryl, or C.sub.7 -C.sub.20 aralkyl or together stand for --(CH.sub.2).sub.n --X--(CH.sub.2).sub.m --,X denotes methylene, oxygen, sulfur, NH or NR.sub.3 andn, m stand for an integer from 0 bis 8,wherein a geminal formyl ester of the general formula II ##STR2## in which R.sup.1 and R.sup.2 have the aforementioned meanings and R.sup.3 denotes C.sub.1 -C.sub.12 alkyl, is caused to react in the presence of an acid catalyst at temperatures ranging from 150.degree. to 400.degree. C.
    • 制备通式I(I)的醛的方法,其中R 1,R 2表示氢,C 1 -C 12烷基,C 3 -C 8环烷基,酰基,芳基或C 7 -C 20芳烷基或一起代表 - (CH 2)n -X-(CH 2)m - ,X表示亚甲基,氧,硫,NH或NR 3,n,m代表0的整数8,其中通式II的偕甲酰基 )其中R 1和R 2具有上述含义,并且R 3表示C 1 -C 12烷基,在酸催化剂存在下在150-400℃的温度下反应。
    • 92. 发明授权
    • Preparation of 5-hydroxyethylpyrrolidones
    • 5-羟乙基吡咯烷酮的制备
    • US5286875A
    • 1994-02-15
    • US960776
    • 1992-10-14
    • Rolf Fischer
    • Rolf Fischer
    • C07D207/26C07D313/04
    • C07D207/26C07D313/04
    • A process for preparing a 5-hydroxyethylpyrrolidone of the general formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 - to C.sub.12 -alkyl, C.sub.3 - to C.sub.8 -cycloalkyl, aryl or C.sub.7 - to C.sub.12 -aralkyl, by reactinga) a caprolactone of the general formula II ##STR2## or b) a butyrolactone of the general formula III ##STR3## where R.sup.2 is C.sub.1 to C.sub.12 -alkyl, ##STR4## R.sup.3 has the meaning of R.sup.2 and is additionally hydrogen and R.sup.4 is C.sub.1 - to C.sub.8 -alkyl or phenyl, with ammonia or a primary amine of the general formula IVR.sup.1 --NH.sub.2 (IV) where R.sup.1 has the abovementioned meanings, at from 150.degree. to 450.degree. C. and at from 10 to 350 bar, and the preparation of the caprolactones II and the butyrolactones III from the cyclohexanones V.
    • 制备通式I“IMAGE”的5-羟乙基吡咯烷酮的方法,其中R 1表示氢,C 1至C 12烷基,C 3至C 8环烷基,芳基或C 7至C 12 - 芳烷基,其中 a)通式II的己内酯,或b)通式III“IMAGE”的丁内酯,其中R 2表示C 1 -C 12烷基,R 3表示含义 R 2另外表示氢,R 4表示C 1〜C 8烷基和苯基,与通式IV“IMAGE”中的氨或伯胺反应,其中R 1具有上述含义, 在150至450℃的温度和10至350巴的压力下,从环己酮V制备己内酯II和丁内酯III。
    • 95. 发明授权
    • Preparation of adipic acid
    • 己二酸的制备
    • US4931590A
    • 1990-06-05
    • US205340
    • 1988-06-10
    • Rudolf KummerFranz MergerWerner BertleffRolf Fischer
    • Rudolf KummerFranz MergerWerner BertleffRolf Fischer
    • B01J31/20C07B61/00C07C51/00C07C51/09C07C55/14C07C67/00C07C67/29C07C67/347C07C67/39C07C69/44C07C69/67
    • C07C67/347C07C51/09C07C67/39
    • Adipic acid is prepared by a process which comprises the following steps:(a) Hydroformylation of a pentenoic ester by reaction with carbon monoxide and hydrogen at elevated temperatures and under superatmospheric pressure in the presence of a cobalt carbonyl or rhodium carbonyl complex with formation of a mixture of 5-, 4- and 3-formylvaleric esters,(b) isolation of the 5-formylvaleric ester from the resulting mixture of 5-, 4- and 3-formylvaleric esters, a mixture essentially consisting of 4- and 3-formylvaleric esters remaining,(c) dehydrocarbonylation of the mixture consisting essentially of 4- and 3-formylvaleric esters in the presence of one or more elements of subgroup 8 of the Periodic Table at from 50.degree. to 400.degree. C. with formation of pentenoic esters, and recycling of the latter to stage (a) for hydroformylation,(d) oxidation of the 5-formylvaleric ester from stage (b) with molecular oxygen or a gas containing molecular oxygen to give a monoester of adipic acid, and(e) hydrolysis of the monoester of adipic acid to give adipic acid.
    • 己二酸通过包括以下步骤的方法制备:(a)在羰基或羰基铑羰基络合物的存在下,在一氧化碳和氢气下,在升高的温度和超大气压下与戊烯酸酯反应,加氢甲酰化形成 5-,4-和3-甲酰基戊酸酯的混合物,(b)从得到的5-,4-和3-甲酰基戊酸酯混合物中分离出5-甲酰基戊酸酯,基本上由4-甲酰基戊酰胺 剩余的酯,(c)在50℃至400℃下在元素周期表第8族的一种或多种元素存在下,基本上由4-甲酰基戊酸酯组成的混合物的脱氢羰基化,形成戊烯酸酯, 并将后者再循环到步骤(a)进行加氢甲酰化,(d)用分子氧或含有分子氧的气体从阶段(b)氧化5-甲酰基戊酸酯,得到己二酸的单酯,和(e) 水解己二酸的单酯得到己二酸。