This invention relates to a method for producing a high-purity cyclohexenone long-chain alcohol represented by formula I, and produces the compound of formula I by a metal-mediated Barbier reaction. The method of the present invention has advantages in its short scheme, high yield, and high-purity product, and is suitable for industrial scale up.

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Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.

Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.

The present invention relates to the photooxidation of 2,4,6-trimethyl-phenol to yield 4-hydroperoxy-2,4,6-trimethylcyclohexa-2,5-dien-1-one using methylene blue as photosensitizer in a solvent mixture of water and alcohols using light of the high wavelength range of the visible spectrum. This process allows 5 obtaining 4-hydroxy-2,4,6-trimethylcyclohexa-2,5-dien-1-one and 2,3,5-trimethyl-hydroquinone in high yields and selectivity from 2,4,6-trimethylphenol.

The present invention relates to the photooxidation of 2,4,6-trimethyl-phenol to yield 4-hydroperoxy-2,4,6-trimethylcyclohexa-2,5-dien-1-one using methylene blue as photosensitizer in a solvent mixture of water and alcohols using light of the high wavelength range of the visible spectrum. This process allows 5 obtaining 4-hydroxy-2,4,6-trimethylcyclohexa-2,5-dien-1-one and 2,3,5-trimethyl-hydroquinone in high yields and selectivity from 2,4,6-trimethylphenol.

A gel composition comprises hydrophilic monomers, a cross-linking agent, an initiator, and astaxanthin-modified cyclodextrin complexes. The astaxanthin-modified cyclodextrin complexes comprise astaxanthin and modified cyclodextrin. The modified cyclodextrin has a chemical structure of

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with a hollow cavity, wherein R represents a chemical group having carbon-carbon double bond. The astaxanthin is embedded in the hollow cavity. The disclosure also provides a method for manufacturing a gel composition, and a method for manufacturing an ophthalmic lens using the gel composition.

A gel composition comprises hydrophilic monomers, a cross-linking agent, an initiator, and astaxanthin-modified cyclodextrin complexes. The astaxanthin-modified cyclodextrin complexes comprise astaxanthin and modified cyclodextrin. The modified cyclodextrin has a chemical structure of

##STR00001##

with a hollow cavity, wherein R represents a chemical group having carbon-carbon double bond. The astaxanthin is embedded in the hollow cavity. The disclosure also provides a method for manufacturing a gel composition, and a method for manufacturing an ophthalmic lens using the gel composition.

The present disclosure is directed to novel derivatives of naturally occurring humulones and lupulones, methods of making them, compositions comprising them, and methods for using them.

The present disclosure relates to methods of carbon-carbon bond fragmentation.

The present disclosure relates to methods of carbon-carbon bond fragmentation.