Abstract:
A non-cyclic branched aliphatic hydrocarbon (e.g., isobutane) is oxidized with oxygen in the presence of an oxidation catalyst comprising an imide compound of the following formula (1) (e.g., N-hydroxyphthalimide) or an oxidation catalyst comprising the imide compound and a co-catalyst (e.g., a transition metal compound of selected from Group 3A, 4A, 5A, 6A, 7A, 8 and 1B elements of the Periodic Table of elements), for the formation of an oxide (e.g., t-butanol, acetone): wherein R and R represent a substituent such as a hydrogen atom or a halogen atom, or R and R may together form a double bond or an aromatic or nonaromatic 5- to 12-membered ring, X is O or OH, and n is 1 to 3.
Abstract:
An ether is oxidized with oxygen under an oxidation catalyst comprising an imide compound (such as N-hydroxyphthalimide) or the imide compound and a co-catalyst to produce the corresponding chain or cyclic ester or anhydride. The co-catalyst may be a transition metal compound. The above process provides a process for oxidizing an ether by oxygen efficiently to produce the corresponding oxide (such as an ester, an hydride) with high conversion and selectivity.
Abstract:
In the presence of an imide compound (e.g., N-hydroxyphthalimide) shown by the following formula (1): wherein R 1 and R 2 represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group and a cycloalkyl group, and R 1 and R 2 may bond together to form a double bond, or an aromatic or non-aromatic ring, and Y is an O or OH, and n denotes 1 to 3; a substrate is allowed to contact with at least one reactant selected from (i) a nitrogen oxide and (ii) a mixture of carbon monoxide and oxygen to be introduced with at least one functional group selected from a nitro group and a carboxyl group. The nitrogen oxide includes, for example, a compound represented by the formula N x O y (e.g., N 2 O 3 , NO 2 ). The substrate includes, for example, a compound having a methine carbon atom (e.g., adamantane), a compound having a methyl group or a methylene group at an adjacent moiety of an aromatic ring. According to such reaction, the substrate can be efficiently nitrated or carboxylated even in a mild or moderate condition.
Abstract translation:在下式(1)所示的酰亚胺化合物(例如N-羟基邻苯二甲酰亚胺)存在下,其中R 1和R 2表示氢原子,卤素原子,烷基, 芳基和环烷基,R 1和R 2可以键合在一起形成双键,或芳族或非芳香环,Y是O或OH,n表示1至3; 允许底物与选自(i)氮氧化物和(ii)一氧化碳和氧气的混合物中的至少一种反应物接触,以将至少一种选自硝基和羧基的官能团引入。 氮氧化物包括例如由式N x O y表示的化合物(例如,N 2 O 3,NO 2)。 底物包括例如具有次甲基碳原子的化合物(例如金刚烷),在芳环的相邻部分具有甲基或亚甲基的化合物。 根据这种反应,即使在温和或中等条件下,底物也能被有效地硝化或羧化。
Abstract:
According to the inventive co-oxidation process of organic compounds, (A) a compound selected from (A1) a compound having a non-aromatic ethylenic bond and (A2) a ketone or an alcohol corresponding to the ketone is oxidized by molecular oxygen in the presence of N-hydroxyphthalimide or another imide compound and in the coexistence of (B) a compound oxidizable by the imide compound and oxygen and different from the compound (A). As the compound (B), (a) primary or secondary alcohols (e.g., benzhydrol, cyclohexanol), (b) compounds each having a carbon-hydrogen bond at the adjacent position to an unsaturated bond (e.g., tetralin, ethylbenzene) and the like can be used. According to this process, a corresponding epoxy compound from the compound (A1) having a non-aromatic ethylenic bond, and a corresponding ester or lactone from the ketone or its corresponding alcohol (A2) can be obtained in satisfactory yields.
Abstract:
The method provides nitro compounds at a high conversion and selectivity by nitrating substrates under comparatively mild conditions in the absence of catalysts. Organic substrates are nitrated using no catalysts or ozone, but using (1) at least one nitrogen compound selected from N 2 O or NO and oxygen. It is advantageous for the nitration reaction to employ a nitrogen compound obtained by a reaction of the nitrogen compound with oxygen, particularly a nitrogen oxide comprising N 2 O 3 as a main component. Additionally, organic substrates are nitrated using (2) NO 2 . The substrates include a compound having a methine-carbon atom, and a compound having a methyl group or methylene group in an adjacent position to an aromatic ring.
Abstract:
In the presence of an imide compound (e.g., N-hydroxyphthalimide) shown by the formula (2): wherein R 1 and R 2 independently represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a cycloalkyl group; or R 1 and R 2 may bond together to form a double bond or an aromatic or non-aromatic ring; Y is O or OH and n = 1 to 3; or the imide compound and a co-catalyst (e.g., a transition metal compound), an adamantane derivative having a functional group such as a nitro group, an amino group, a hydroxyl group, a carboxyl group, a hydroxymethyl group and an isocyanato group is oxidized with oxygen. According to the above method, an adamantane derivative having a hydroxyl group together with a functional group such as a nitro group, an amino group, a hydroxyl group, a carboxyl group, a hydroxymethyl group and an isocyanato group is efficiently obtained.
Abstract:
A substrate is contacted with oxygen in the presence of the imide compound shown by the following formula (1) (N-hydroxyphthalimide) and a strong acid, or the imide compound, the strong acid and a co-catalyst (e.g., a transition metal compound) to oxygenate the substrate with high conversion and selectivity: wherein R 1 and R 2 represent a substituent such as a hydrogen atom or a halogen atom, an alkyl group, an aryl group or a cycloalkyl group, or R 1 and R 2 may bond together to form a double bond or an aromatic or nonaromatic ring, X is O or OH, and n is 1 to 3. The substrate comprises, for example, at least one compound selected from (a) a compound having a methyl group or a methylene group at an adjacent site of an unsaturated bond, (b) a homo- or hetero cyclic compound having a methylene group, (c) a compound having a methine carbon atom, (d) a compound having a methyl group or a methylene group at an adjacent site of an aromatic ring and (e) a compound having a methyl group or a methylene group at an adjacent site of a carbonyl group.
Abstract:
A non-cyclic branched aliphatic hydrocarbon (e.g., isobutane) is oxidized with oxygen in the presence of an oxidation catalyst comprising an imide compound of the following formula (1) (e.g., N-hydroxyphthalimide) or an oxidation catalyst comprising the imide compound and a co-catalyst (e.g., a transition metal compound of selected from Group 3A, 4A, 5A, 6A, 7A, 8 and 1B elements of the Periodic Table of elements), for the formation of an oxide (e.g., t-butanol, acetone): wherein R 1 and R 2 represent a substituent such as a hydrogen atom or a halogen atom, or R 1 and R 2 may together form a double bond or an aromatic or nonaromatic 5- to 12-membered ring, X is O or OH, and n is 1 to 3.
Abstract:
A process for cooxidizing organic compounds which comprises, in the presence of an imide compound such as N-hydroxyphthalimide, oxidizing with molecular oxygen a compound (A) which is selected from among (A1) compounds having nonaromatic ethylenic linkage and (A2) ketones or alcohols corresponding to the ketones and a compound (B) which can be oxidized by the above imide compound with oxygen and is different from the above compound (A). As the compound (B), use can be made of (a) primary or secondary alcohols (benzhydrol, cyclohexanol, etc.), and (b) compounds having a carbon-hydrogen bond adjacent to an unsaturated bond (tetralin, ethylbenzene, etc.). Use of this process makes it possible to obtain the corresponding epoxy compounds from (A1) compounds having nonaromatic ethylenic linkage, and the corresponding esters or lactones from (A2) ketones or alcohols corresponding to the ketones, each at a high yield.
Abstract:
High yields of polymerizable adamantane derivatives each having at least one polymerizable unsaturated group are produced by the esterification or amidation of a compound of general formula (1a) and a polymerizable unsaturated compound (e.g. an alcohol, a carboxylic acid or an amine) in the presence of a catalyst comprising a compound of a Group 3 element of the periodic table, such as a samarium compound. In said formula, R?1a to R4a¿ represent each a substituent selected from among inert atoms, inert groups, hydroxyl, carboxyl and amino, provided at least two groups of R?1a to R4a¿ are hydroxyl, carboxyl or amino.