The present invention relates to a catalyst for hydrogenation of an aromatic compound, which is capable of greatly reducing the inactivation of a catalyst by using a support including a magnesium-based spinel structure, and a preparation method therefor.

The present invention relates to a process for the preparation of aqueous solutions of [1-.sup.13C]-hyperpolarized carboxylate containing molecules of diagnostic interest that comprises parahydrogenating with molecular para-hydrogen unsaturated alkenyl or alkynyl esters of the concerned .sup.13C-carboxylate molecules.

The present invention relates to a process for the preparation of aqueous solutions of [1-.sup.13C]-hyperpolarized carboxylate containing molecules of diagnostic interest that comprises parahydrogenating with molecular para-hydrogen unsaturated alkenyl or alkynyl esters of the concerned .sup.13C-carboxylate molecules.

The present invention relates to a process for the preparation of aqueous solutions of [1-.sup.13C]-hyperpolarized carboxylate containing molecules of diagnostic interest that comprises parahydrogenating with molecular para-hydrogen unsaturated alkenyl or alkynyl esters of the concerned .sup.13C-carboxylate molecules.

The present invention relates to a process for the preparation of aqueous solutions of [1-.sup.13C]-hyperpolarized carboxylate containing molecules of diagnostic interest that comprises parahydrogenating with molecular parahydrogen unsaturated alkenyl or alkynyl esters of the concerned .sup.13C-carboxylate molecules.

The present invention relates to a process for the preparation of aqueous solutions of [1-.sup.13C]-hyperpolarized carboxylate containing molecules of diagnostic interest that comprises parahydrogenating with molecular parahydrogen unsaturated alkenyl or alkynyl esters of the concerned .sup.13C-carboxylate molecules.

The present invention relates to a process for the preparation of aqueous solutions of [1-.sup.13C]-hyperpolarized carboxylate containing molecules of diagnostic interest that comprises parahydrogenating with molecular parahydrogen unsaturated alkenyl or alkynyl esters of the concerned .sup.13C-carboxylate molecules.

The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.

The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.

Described herein are compositions composed of frustrated Lewis pairs impregnated in porous materials such as, for example, metal-organic frameworks, and their uses thereof. These compositions may allow new applications of frustrated Lewis pairs in catalysis by sequestering and protecting the frustrated Lewis pair within the nanospace of the porous material. Also provided are methods of hydrogenating an organic compound having at least one unsaturated functional group comprising using the compositions described herein.