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    • 2. 发明授权
    • Process for selective epoxidation of unsaturated (meth)acrylic compounds
and new bifunctional (meth)acrylates obtained
    • 选择性环氧化不饱和(甲基)丙烯酸类化合物和新型双官能(甲基)丙烯酸酯的方法
    • US5481012A
    • 1996-01-02
    • US335960
    • 1994-11-03
    • Paul CaubereYves FortAgnes Ortar
    • Paul CaubereYves FortAgnes Ortar
    • B01J23/28B01J23/30C07B61/00C07D301/12C07D303/16C07D303/40
    • C07D303/40C07D303/16
    • Process for the epoxidation of an unsaturated (meth)acrylic compound of formula: ##STR1## in which R.sub.1 is chosen from H and C.sub.1 -C.sub.5 -alkyl; R.sub.2 is chosen from H, alkyl and aryl; R.sub.3 is a straight-chain, branched or cyclic alkylene or oxyalkylene radical having from 1 to 12 carbon atoms, it being possible for one of the carbon atoms of R.sub.2, when the latter is an alkyl radical, to be linked to one of the carbon atoms of R.sub.3 to form a ring; and A is chosen from O, S, NH and NR.sub.4, R.sub.4 being a C.sub.1 -C.sub.12 -alkyl group; by the action of hydrogen peroxide on the said unsaturated (meth)acrylic compound, at a temperature of between 10.degree. C. and 50.degree. C., in the presence of at least one catalyst chosen from the alkali metal molybdates and the alkali metal pertungstates and in the presence of at least one phase transfer agent.
    • 式(I)的不饱和(甲基)丙烯酸化合物的环氧化方法,其中R 1选自H和C 1 -C 5 - 烷基; R2选自H,烷基和芳基; R 3是具有1至12个碳原子的直链,支链或环状的亚烷基或氧亚烷基,当其中一个碳原子为烷基时,R2可以与一个碳原子连接 R3的原子形成环; A选自O,S,NH和NR4,R4是C1-C12-烷基; 通过过氧化氢对所述不饱和(甲基)丙烯酸化合物的作用,在10℃至50℃的温度下,在至少一种选自碱金属钼酸盐和碱金属过钨酸盐的催化剂存在下, 并在至少一种相转移剂存在下进行。
    • 3. 发明授权
    • Selective epoxidation of unsaturated (meth)acrylates, new functional
(meth)acrylates, and polymers thereof
    • 不饱和(甲基)丙烯酸酯,新功能(甲基)丙烯酸酯及其聚合物的选择性环氧化
    • US5283360A
    • 1994-02-01
    • US725318
    • 1991-07-08
    • Paul CaubereYves FortAgnes Ortar
    • Paul CaubereYves FortAgnes Ortar
    • B01J23/22B01J23/28B01J23/30B01J27/18B01J31/24C07B35/06C07B41/02C07B61/00C07C67/29C07C69/54C07C233/20C07C327/28C07D301/12C07D301/14C07D303/16C07D303/48C07D317/24C07D317/30C07F7/18C08F20/26C08F20/28C08F20/32C08F30/02C07C69/52
    • C07F7/188C07C67/29C07C69/54C07D303/16C07D317/24C07F7/1852
    • An unsaturated (meth)acrylic compound of formula: ##STR1## (X.dbd.O, S, NH, NR.sup.3 (R.sup.3 =C.sub.1-12 -alkyl) or O--(CH.sub.2).sub.n (where n=1-16 approximately); R.sup.2 =C.sub.2-20 straight-chain or branched alkyl, monocyclic or polycyclic cycloalkyl or heterocycloalkyl, or alkylaryl hydrocarbon chain, comprising an olefinic double bond in the chain, or at the end of the chain in the case of alkyl or alkylaryl, or an exocyclic or endocyclic olefinic double bond in the case of monocyclic or polycyclic cycloalkyl or heterocycloalkyl; and R.sup.1 =H or C.sub.1-5 -alkyl), is reacted at 10.degree.-60.degree. C. with at least one oxidizing compound (hydrogen peroxide) in the presence of at least one catalyst (alkali metal molybdates and tungstates) and in the presence of at least one phase transfer agent and when R.sup.2 =polycyclic cycloalkyl or hetercycloalkyl, an organic peracid or hydrogen peroxide in the presence of at least one heteropolyacid. To open the epoxide function, the epoxide obtained is reacted with a compound chosen from strong inorganic acids, boron trifluoride etherate complexes, acid salts in the presence of the corresponding acid, halides of trialkylsilanes or trialkoxysilanes, and ketones in the presence of cationic resins.
    • (I)(X = O,S,NH,NR 3(R 3 = C 1-12 - 烷基)或O-(CH 2)n)(其中n = 1-16)的不饱和(甲基)丙烯酸化合物 ); R2 = C2-20直链或支链烷基,单环或多环环烷基或杂环烷基或烷基芳基烃链,其在链中包含烯属双键,或在烷基或烷基芳基的情况下在链末端, 在单环或多环环烷基或杂环烷基的情况下为环状或内环烯属双键;且R 1 = H或C 1-5 - 烷基)在10°-60℃下与至少一种氧化化合物(过氧化氢 )在至少一种催化剂(碱金属钼酸盐和钨酸盐)存在下,并且在至少一种相转移剂存在下,并且当R 2 =多环环烷基或杂环烷基时,有机过酸或过氧化氢在至少一种杂多酸 。 为了打开环氧化物官能团,所得环氧化物与选自强无机酸,三氟化硼醚合物络合物,酸盐在相应的酸,三烷基硅烷或三烷氧基硅烷的卤化物,以及阳离子树脂存在下的酮的化合物反应。