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    • 3. 发明授权
    • Preparation of 1,1-disubstituted ethylene compounds
    • 1,1-二取代的乙烯化合物的制备
    • US4997955A
    • 1991-03-05
    • US205341
    • 1988-06-10
    • Franz MergerJoerg LiebeWerner Bertleff
    • Franz MergerJoerg LiebeWerner Bertleff
    • C07B35/06C07B31/00C07B47/00C07B61/00C07C45/00C07C45/61C07C45/66C07C49/647C07C57/13C07C67/00C07C67/327C07C67/42C07C69/533C07C69/593C07C231/00C07C233/47C07C253/00C07C255/07C07C255/31C07C255/34C07D307/33
    • C07C255/00C07C253/00C07C253/30C07C45/61C07C49/647
    • 1,1-disubstituted ethylene compounds of the general formula I ##STR1## where Z is COOR.sup.2, CN or COR.sup.3, R.sup.1 is an aliphatic, cycloalophatic, araliphatic, aromatic or heterocyclic radical which may be further substituted by functional groups which are inert under the reaction conditions, R.sup.2 is an aliphatic, cycloaliphatic or araliphatic radical of 1 to 15 carbon atoms and R.sup.3 is an aliphatic, cycloaliphatic or araliphatic radical of 1 to 15 carbon atoms which may be substituted by groups which are inert under the reaction conditions, and R.sup.1 together with R.sup.2 or R.sup.1 together with R.sup.3 may furthermore form an alkylene chain of 2 to 10 carbon atoms which may be substituted by groups which are inert under the reaction conditions, are prepared from a formyl compound of the general formula II ##STR2## where Z, R.sup.1, R.sup.2 and R.sup.3 have the above meanings, by a process in which the reaction is carried out in the presence of formaldehyde or paraformaldehyde and(a) a C.sub.1 -C.sub.12 -alkanol or(b) a mixture of a C.sub.1 -C.sub.12 -alkanol and water or(c) with water in the presence of a secondary amine and a protic acidat from 0.degree. to 200.degree. C.
    • 其中Z是COOR2,CN或COR3的通式I的1,1-二取代的乙烯化合物,R 1是可以进一步被惰性的官能团取代的脂族,环状,芳脂族,芳族或杂环基团 反应条件中,R 2为1至15个碳原子的脂族,脂环族或芳脂族基团,R 3为可被反应条件下为惰性基团取代的具有1至15个碳原子的脂族,脂环族或芳脂族基团,以及 R1与R 2或R 1与R 3一起可以形成可以在反应条件下为惰性的基团取代的具有2-10个碳原子的亚烷基链,其由通式II的甲酰基化合物制备 其中Z,R 1,R 2和R 3具有上述含义,通过反应在甲醛或多聚甲醛存在下进行的方法和(a)C 1 -C 12烷醇或(b) C 12链烷醇和水,或(c)在0℃至200℃的仲胺和质子酸存在下与水反应。
    • 4. 发明授权
    • Preparation of 1,3-di(alkoxycarbonylamino)propanes
    • 制备1,3-二(烷氧基羰基氨基)丙烷
    • US4672137A
    • 1987-06-09
    • US856971
    • 1986-04-29
    • Franz MergerJoerg Liebe
    • Franz MergerJoerg Liebe
    • C07B61/00B01J23/00B01J23/44B01J25/00B01J25/02C07C67/00C07C239/00C07C269/00C07C271/06C07C125/07C07C125/073C07C125/075
    • C07C271/06
    • 1,3-Di(alkoxycarbonylamino)propanes of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 can be identical or different and each is hydrogen, or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, and R.sup.4 is an aliphatic, cycloaliphatic or araliphatic radical, are prepared by reacting an .alpha.,.beta.-unsaturated aldehyde with a carbamic acid ester by reacting in a first stage as the .alpha.,.beta.-unsaturated aldehyde a compound of the general formula II ##STR2## where R.sup.1, R.sup.2 and R.sup.3 have the abovementioned meanings, with a carbamic acid ester of the general formula III ##STR3## where R.sup.4 has the abovementioned meanings, at 0.degree.-150.degree. C. to give a 1,1,3-tri(alkoxycarbonylamino)propane of the general formua IV ##STR4## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the abovementioned meanings, and in a second stage heating the compound of the general formula (IV) in the presence of a hydrogenation catalyst and hydrogen under 1-300 bar at 100.degree.-300.degree. C.
    • 通式I(I)的1,3-二(烷氧基羰基氨基)丙烷,其中R 1,R 2和R 3可以相同或不同,各自为氢,或脂族,脂环族,芳脂族或芳族基,R4为 通过使α,β-不饱和醛与氨基甲酸酯反应,通过在第一阶段中作为α,β-不饱和醛与通式II的化合物(II)反应来制备脂族,脂环族或芳脂族基团 )其中R 1,R 2和R 3具有上述含义,与0℃-150℃下具有上述含义的通式III(III)的氨基甲酸酯反应,得到1,1, (IV)的3-三(烷氧基羰基氨基)丙烷,其中R 1,R 2,R 3和R 4具有上述含义,在第二阶段中,在通式(Ⅳ)的化合物存在下加热通式 氢化催化剂和在1-300巴下在100-300℃的氢气
    • 9. 发明授权
    • 3-substituted 2-hydroxy-3-formylpropionic esters, the preparation
thereof and the use thereof for preparing 3-substituted 3-formylacrylic
esters
    • 3-取代的2-羟基-3-甲酰基丙酸酯,其制备及其用于制备3-取代的3-甲酰基丙烯酸酯的用途
    • US5256813A
    • 1993-10-26
    • US883342
    • 1992-05-15
    • Franz MergerJuergen Frank
    • Franz MergerJuergen Frank
    • C07C69/675C07C69/732
    • C07C69/675
    • A 3-substituted 2-hydroxy-3-formylpropionic ester of the formula I ##STR1## where R.sup.1 is lower alkyl, and R.sup.2 is straight-chain or branched alkyl of 1 to 10 carbon atoms, is obtained by adding an alkanal of the fomrula II ##STR2## and an alkyl glyoxylate of the formula III ##STR3## simultaneously to a catalyst system composed of a salt or a mixture of a secondary amine and a carboxylic acid in such a way that the temperature does not exceed 90.degree. C., preferably 80.degree. C., or else adding one of the reactants of the formula II or III to a mixture of the catalyst system described above and the other reactant in such a way that the temperature does not exceed 90.degree. C. The 2-hydroxy-3-formylpropionic eater of the formula I can be converted by treatment with dehydrating agents, especially acetic anhydride, into good yields of the corresponding 3-substituted 3-formylacrylic ester.
    • 其中R1是低级烷基,R2是具有1-10个碳原子的直链或支链烷基的式Ⅰ的3-取代的2-羟基-3-甲酰基丙酸酯是通过将烷基 的II型和式III(III)的烷基乙醛酸盐同时与由仲胺和羧酸的盐或混合物组成的催化剂体系,使得 温度不超过90℃,优选80℃,或者将一种式II或III的反应物加入到上述催化剂体系和另一种反应物的混合物中,使得温度不 超过90℃。式I的2-羟基-3-甲酰基丙酸酯可以通过用脱水剂,特别是乙酸酐处理转化成相应3-取代的3-甲酰基丙烯酸酯的良好产率。