Photoinduced Copper‐Catalyzed Coupling of Terminal Alkynes and Alkyl Iodides
作者:Avijit Hazra、Mitchell T. Lee、Justin F. Chiu、Gojko Lalic
DOI:10.1002/anie.201801085
日期:2018.5.4
We have developed a photoinduced copper‐catalyzed alkylation of terminal alkynes with primary, secondary, or tertiary alkyl iodides as electrophiles. The reaction has a broad substrate scope and can be successfully performed in the presence of ester, nitrile, aryl halide, ketone, sulfonamide, epoxide, alcohol, and amide functional groups. The alkylation is promoted by blue light (λ≈450 nm) and proceeds
Method for producing alkoxy-hydroxybenzaldehyde that is substantially free of alkyl-alkoxy-hydroxybenzaldehyde
申请人:RHODIA OPERATIONS
公开号:US20150203428A1
公开(公告)日:2015-07-23
The invention relates to a method for producing at least one alkoxy-hydroxybenzaldehyde (AHBA) from at least one hydroxyphenol (HP), said method being characterised in that it comprises the formation of at least one alkoxyphenol (AP) and alkyl-alkoxyphenol (AAP) and the separation (S) of AP from AAP, said separation (S) being carried out prior to obtaining AHBA.
[EN] CATALYTIC CONVERSION OF BIOMASS TO BIOPHENOL<br/>[FR] CONVERSION CATALYTIQUE DE BIOMASSE EN BIOPHÉNOL
申请人:UNIV EINDHOVEN TECH
公开号:WO2019177458A1
公开(公告)日:2019-09-19
The invention relates to a demethoxylation process for demethoxylating alkylmethoxyphenols using an aromatic solvent to produce alkylphenols. The invention also relates to dealkylation process for dealkylating alkylphenols using an aromatic solvent to produce phenol. The invention further relates to a tandem demethoxylation and dealkylation process, which can be performed in a single reactor. The process is useful in the conversion of lignin derived alkylmethoxyphenols into biophenol.
[EN] APPLICATION OF NATURAL AND SYNTHETIC EUGENOL AND ESSENTIAL OILS FROM CLOVES, PIMENTOS AND CINNAMON LEAVES FOR THE PREVENTION AND TREATMENT OF ANIMAL DISEASES CAUSED BY BACTERIA, FUNGI AND PARASITES<br/>[FR] UTILISATION D'EUGENOL NATUREL OU SYNTHETIQUE ET D'HUILES ESSENTIELLES, DE CLOUS DE GIROFLE, DE PIMENTS ET DE FEUILLES DE CANNELLE POUR LA PREVENTION ET LE TRAITEMENT DE MALADIES ANIMALES PROVOQUEES PAR DES BACTERIES, DES CHAMPIGNONS OU DES PARASITES
申请人:GLIGOVIC VOJIN
公开号:WO2005074965A1
公开(公告)日:2005-08-18
Patent registration refers to applications of natural and synthetic eugenol, essential oils from plants containing eugenol: cloves (Eugenia caryophyllata), pimentos (Pimenta officinalis)and cinnamon leaves (Cinnamomum zeylanicum) in the prevention and treatment of animal diseases caused by bacteria, fungi and parasites. The technical problem of improvement of properties of veterinary preparations has been resolved so that natural and synthetic eugenol and eugenol from plant essential oils (cloves, pimentos and cinnamon leaves) have been added to them. This considerably prevents growth of bacteria, fungi and parasites or destroys them resulting in preventive effects or treatment of animals affected by some of the above disease causes. By applying eugenol in veterinary preparations in one of the above mentioned forms, negative effects and counter indications have been avoided and use of preparations has been made possible during the entire cycle of animal breeding.
An oral composition mouthwash or liquid dentifrice containing an aqueous vehicle acceptable vehicle including an alcohol, a substantially water-insoluble noncationic antibacterial antiplaque agent, such as 2,4,4'-trichloro-2'-hydroxy-diphenyl ether (triclosan) wherein the antiplaque agent is entirely dissolved in the solvent and the weight ratio of water to alcohol is in excess of about 10:1.