Abstract:
A process for producing dicarboxylic acids by oxidative cleavage of cycloalkanes with oxygen, characterized in that the oxidative cleavage is conducted in the presence of a catalyst constituted of both an imido compound having a cyclic imide skeleton represented by the general formula (I): (I) [wherein X is oxygen or OR (wherein R is hydrogen or a hydroxyl-protecting group)] and a metal compound at a temperature of 80 °C or above in a reaction system having a cycloalkane concentration of 21 wt% or above. The imido compound is N-hydroxyphthalimide or the like, and is used in an amount of about 0.000001 to 0.01 mol per mol of the cycloalkane. In producing dicalboxylic acids by catalytic oxygenation of cycloalkanes, this process attains high space time yield even with a reduced amount of a catalyst.
Abstract:
Polymerizable alicyclic esters represented by formula (1) or (2), wherein rings A, B, C, D, and E each represents a nonaromatic carbon ring; R represents a polymerizable unsaturated group; and R?a1, Rb1, and Rc1¿ are the same or different and each represents hydrogen, a hydroxyl group optionally protected by a protective group, or a group represented by RCO¿2? (R has the same meaning as the above). Examples of the rings A, B, C, D, and E include a cyclopentane ring, a cyclohexane ring, and crosslinked rings. Examples of R include vinyl, isopropenyl, and allyl.
Abstract:
Substrates (such as cycloalkalnes, polycyclic hydrocarbons or aromatic compounds having methyl or methylene adjacent to their respective aromatic rings) are converted into oxides (such as ketones, alcohols or carboxylic acids) through oxygenation in the presence of an oxidation catalyst system comprising an imide compound of general formula (1) (such as N-hydroxyphthalimide) and a co-catalyst containing an element selected from the group consisting of group 2A elements of the periodic table, transition metals (group 3A to 7A, 8, 1B and 2B elements of the periodic table) and group 3B elements of the periodic table (except phosphovanadomolybdic acid) (wherein R?1 and R2¿ are each hydrogen or a substituent such as halogen, or alternatively R?1 and R2¿ may be united to form a double bond or an aromatic or non-aromatic 5- to 12-membered ring; X is O or OH; and n is 1 to 3).
Abstract:
A vinyl ether compound represent by following Formula (4): wherein ring Z is any one of cyclic groups represented by following Formulae (5) through (12): wherein X 1 , X 2 , X 3 , X 4 , X 5 , X 6 , X 7 , and X 8 are each a substituent combined with an atom constituting each ring and are each a halogen atom, an alkyl group, a haloalkyl group, an aryl group, a hydroxyl group which may be protected by a protecting group, a hydroxymethyl group which may be protected by a protecting group, an amino group which may be protected by a protecting group, a carboxyl group which may be protected by a protecting group, a sulfo group which may be protected by a protecting group, an oxo group, a nitro group, a cyano group, or an acyl group which may be protected by a protecting group, wherein, when there are two or more substituents X 1 s, these X 1 s may be combined to form a ring containing four or more members with a carbon atom constituting the cyclohexane ring in Formula (5); a, b, c, d, e, f, g, and h are each an integer of 0 or more, wherein when a, b, c, d, 3, f, g or h is 2 or more, the substituents in the parentheses may be the same or different; and p, q, and r are each an integer of from 0 to 3; W is a divalent hydrocarbon group; R 2 , R 3 , and R 4 are the same or different and are each a hydrogen atom or an organic group; n is 0 or 1; and m is an integer of from 1 to 8, wherein groups in the parentheses may be the same or different when m is 2 or more; wherein a in Formula (5) is 1 or more and b in Formula (6) is 1 or more when n is 0 and m is 1; and wherein c is 1 or more when p is 0 or 1, and X 3 is a group other than hydroxyl group when p is 0 and c is 1 in Formula (7).
Abstract:
El proceso de la invención permite la reacción de un cicloalcano con oxígeno en presencia de un compuesto de imida catalítico que tiene una estructura de imida cíclica N-hidroxi (o N-oxo), en virtud de lo cual se produce el peróxido bis (1-hidroxicicloalquilo) correspondiente. El compuesto imida catalítico incluye por ejemplo un compuesto representado por la siguiente fórmula (1): en la que R1 y R2 son cada uno de ellos un átomo de hidrógeno, un átomo de halógeno, un grupo alquilo, un grupo arilo o un grupo cicloalquilo, pudiéndose combinar R1 y R2 para formar un enlace doble, un anillo aromático o no aromático; y X es un átomo de oxígeno o un grupo hidroxilo. el cicloalcano incluye, por ejemplo, un cicloalcano que tiene de 5 a 15 eslabones. La invención puede producir fácilmente peróxido de bis (1-hidroxicicloalquil) a partir de un material barato.
Abstract:
A compound shown by the following formula: wherein each of R , R , R and R represents a substituent selected from a non-reactive atom, a non-reactive group, a hydroxyl group and an amino group, and at least two members selected from R , R , R and R are a hydroxyl group, a carboxyl group or an amino group; is subjected to an esterification reaction or an amidation reaction with a polymerizable unsaturated compound (e.g., an alcohol, a carboxylic acid, an amine) in the presence of a catalyst comprising an element selected from the Group 3 elements, such as a samarium compound, to obtain a polymerizable adamantane derivative having at least one polymerizable unsaturated group in high yield.