C07C49/782

Method for converting hydroxyl group of alcohol

The present invention relates to: a method for converting a hydroxyl group of an alcohol; and a catalyst which makes the method possible. A method for converting a hydroxyl group of an alcohol according to the present invention is characterized by producing a compound represented by CH(R.sup.1)(R.sup.2)Nu (wherein R.sup.1, R.sup.2 and Nu are as defined below) by reacting an alcohol represented by CH(R.sup.1)(R.sup.2)OH (wherein each of R.sup.1 and R.sup.2 represents a hydrogen atom, an optionally substituted alkyl group, or the like) and a compound having an active proton, which is represented by H-Nu (wherein Nu represents a group represented by —CHX.sup.1-EWG.sup.1 or —NR.sup.3R.sup.4; X.sup.1 represents a hydrogen atom or the like; EWG.sup.1 represents an electron-withdrawing group; and each of R.sup.3 and R.sup.4 represents a hydrogen atom, an optionally substituted alkyl group, or the like), with each other in the presence of a complex of a group 7-11 metal of the periodic table and at least one solid base that is selected from the group consisting of layered double hydroxides, composite oxides and calcium hydroxide.

Method for converting hydroxyl group of alcohol

The present invention relates to: a method for converting a hydroxyl group of an alcohol; and a catalyst which makes the method possible. A method for converting a hydroxyl group of an alcohol according to the present invention is characterized by producing a compound represented by CH(R.sup.1)(R.sup.2)Nu (wherein R.sup.1, R.sup.2 and Nu are as defined below) by reacting an alcohol represented by CH(R.sup.1)(R.sup.2)OH (wherein each of R.sup.1 and R.sup.2 represents a hydrogen atom, an optionally substituted alkyl group, or the like) and a compound having an active proton, which is represented by H-Nu (wherein Nu represents a group represented by —CHX.sup.1-EWG.sup.1 or —NR.sup.3R.sup.4; X.sup.1 represents a hydrogen atom or the like; EWG.sup.1 represents an electron-withdrawing group; and each of R.sup.3 and R.sup.4 represents a hydrogen atom, an optionally substituted alkyl group, or the like), with each other in the presence of a complex of a group 7-11 metal of the periodic table and at least one solid base that is selected from the group consisting of layered double hydroxides, composite oxides and calcium hydroxide.

METHOD FOR CONVERTING HYDROXYL GROUP OF ALCOHOL

The present invention relates to: a method for converting a hydroxyl group of an alcohol; and a catalyst which makes the method possible. A method for converting a hydroxyl group of an alcohol according to the present invention is characterized by producing a compound represented by CH(R.sup.1)(R.sup.2)Nu (wherein R.sup.1, R.sup.2 and Nu are as defined below) by reacting an alcohol represented by CH(R.sup.1)(R.sup.2)OH (wherein each of R.sup.1 and R.sup.2 represents a hydrogen atom, an optionally substituted alkyl group, or the like) and a compound having an active proton, which is represented by H-Nu (wherein Nu represents a group represented by CHX.sup.1-EWG.sup.1 or NR.sup.3R.sup.4; X.sup.1 represents a hydrogen atom or the like; EWG.sup.1 represents an electron-withdrawing group; and each of R.sup.3 and R.sup.4 represents a hydrogen atom, an optionally substituted alkyl group, or the like), with each other in the presence of a complex of a group 7-11 metal of the periodic table and at least one solid base that is selected from the group consisting of layered double hydroxides, composite oxides and calcium hydroxide.

METHOD FOR CONVERTING HYDROXYL GROUP OF ALCOHOL

The present invention relates to: a method for converting a hydroxyl group of an alcohol; and a catalyst which makes the method possible. A method for converting a hydroxyl group of an alcohol according to the present invention is characterized by producing a compound represented by CH(R.sup.1)(R.sup.2)Nu (wherein R.sup.1, R.sup.2 and Nu are as defined below) by reacting an alcohol represented by CH(R.sup.1)(R.sup.2)OH (wherein each of R.sup.1 and R.sup.2 represents a hydrogen atom, an optionally substituted alkyl group, or the like) and a compound having an active proton, which is represented by H-Nu (wherein Nu represents a group represented by CHX.sup.1-EWG.sup.1 or NR.sup.3R.sup.4; X.sup.1 represents a hydrogen atom or the like; EWG.sup.1 represents an electron-withdrawing group; and each of R.sup.3 and R.sup.4 represents a hydrogen atom, an optionally substituted alkyl group, or the like), with each other in the presence of a complex of a group 7-11 metal of the periodic table and at least one solid base that is selected from the group consisting of layered double hydroxides, composite oxides and calcium hydroxide.

Liquid crystal compound, liquid crystal composition, composite material with encapsulated liquid crystal, and liquid crystal display device using same

Shown is a bimesogenic compound having high solubility in a liquid crystal compound, a liquid crystal composition, a chiral dopant, an additive including an antioxidant or an ultraviolet light absorber, and a polymerizable liquid crystal compound, each of which is used in other bimesogenic compounds or a liquid crystal display device, while maintaining desired physical properties. A compound is represented by formula (1), a liquid crystal composition contains the compound, conjugate fibers with an encapsulated liquid crystal obtained from the liquid crystal composition, and a liquid crystal display device is obtained from the conjugate fibers with the encapsulated liquid crystal.
MG.sup.1-Z.sup.a-Sp-Z.sup.b-MG.sup.2(1)

Liquid crystal compound, liquid crystal composition, composite material with encapsulated liquid crystal, and liquid crystal display device using same

Shown is a bimesogenic compound having high solubility in a liquid crystal compound, a liquid crystal composition, a chiral dopant, an additive including an antioxidant or an ultraviolet light absorber, and a polymerizable liquid crystal compound, each of which is used in other bimesogenic compounds or a liquid crystal display device, while maintaining desired physical properties. A compound is represented by formula (1), a liquid crystal composition contains the compound, conjugate fibers with an encapsulated liquid crystal obtained from the liquid crystal composition, and a liquid crystal display device is obtained from the conjugate fibers with the encapsulated liquid crystal.
MG.sup.1-Z.sup.a-Sp-Z.sup.b-MG.sup.2(1)

PLATINUM GROUP METAL ION-SUPPORTED CATALYST AND METHOD FOR FORMING CARBON-CARBON BOND

A platinum group metal ion-supported catalyst in which platinum group metal ions or platinum group metal complex ions are supported on a non-particulate organic porous ion exchanger, wherein the non-particulate organic porous ion exchanger is formed of a continuous framework phase and a continuous pore phase; has a thickness of a continuous framework of 1 to 100 m, an average diameter of continuous pores of 1 to 1000 m, and a total pore volume of 0.5 to 50 ml/g; has an ion exchange capacity per weight in a dry state of 1 to 9 mg equivalent/g; and has ion exchange groups wherein the ion exchange groups are uniformly distributed in the organic porous ion exchanger.

PLATINUM GROUP METAL ION-SUPPORTED CATALYST AND METHOD FOR FORMING CARBON-CARBON BOND

A platinum group metal ion-supported catalyst in which platinum group metal ions or platinum group metal complex ions are supported on a non-particulate organic porous ion exchanger, wherein the non-particulate organic porous ion exchanger is formed of a continuous framework phase and a continuous pore phase; has a thickness of a continuous framework of 1 to 100 m, an average diameter of continuous pores of 1 to 1000 m, and a total pore volume of 0.5 to 50 ml/g; has an ion exchange capacity per weight in a dry state of 1 to 9 mg equivalent/g; and has ion exchange groups wherein the ion exchange groups are uniformly distributed in the organic porous ion exchanger.

SYNTHESIS OF HYPERVALENT IODINE REAGENTS WITH DIOXYGEN

Methods of synthesis of hypervalent iodine reagents and methods for oxidation of organic compounds are disclosed.

SYNTHESIS OF HYPERVALENT IODINE REAGENTS WITH DIOXYGEN

Methods of synthesis of hypervalent iodine reagents and methods for oxidation of organic compounds are disclosed.