A vanillin is found to be a useful starting material for preparing new monomers that can be further applied to make high Tg composite resins that are in turn useful for making composite parts.

A vanillin is found to be a useful starting material for preparing new monomers that can be further applied to make high Tg composite resins that are in turn useful for making composite parts.

The present invention provides a process for the preparation of 1,4-butanediol and tetrahydrofuran said process comprising contacting furan with hydrogen and water in the presence of a supported catalytic composition comprising rhenium and palladium in a weight ratio of at least 1:1 and a total combined weight rhenium and palladium in the catalyst composition in the range of from 0.01 to 20 wt %.

The present invention provides a process for the preparation of 1,4-butanediol and tetrahydrofuran said process comprising contacting furan with hydrogen and water in the presence of a supported catalytic composition comprising rhenium and palladium in a weight ratio of at least 1:1 and a total combined weight rhenium and palladium in the catalyst composition in the range of from 0.01 to 20 wt %.

The present invention discloses a process for preparation of white curcumin from purified curcuminoids. The curcuminoids are obtained by solvent extraction and crystallization of dried turmeric powder. The autoclave is charged with ethyl acetate and the 95% purity curcuminoids mixture is added to and stirred for uniformity at room temperature. 5% (w/w) of 10% palladium carbon is added to the reaction mixture and allowed for hydrogenation in the presence of hydrogen gas at 2 lbps pressure and stirred continuously for 15 hours. Once the reaction is completed, the reaction mixture is filtered and washed with ethyl acetate. The ethyl acetate is distilled off and crude mass is stirred with water to obtain a solid precipitate. Finally, the solid obtained is filtered and dried to pale brown crystals of white curcumin. White curcumin is encapsulated with beta-cyclodextrin, which exhibited increased bioavailability. White curcumin also exhibited anti-oxidant and chemopreventive activities.

The present invention discloses a process for preparation of white curcumin from purified curcuminoids. The curcuminoids are obtained by solvent extraction and crystallization of dried turmeric powder. The autoclave is charged with ethyl acetate and the 95% purity curcuminoids mixture is added to and stirred for uniformity at room temperature. 5% (w/w) of 10% palladium carbon is added to the reaction mixture and allowed for hydrogenation in the presence of hydrogen gas at 2 lbps pressure and stirred continuously for 15 hours. Once the reaction is completed, the reaction mixture is filtered and washed with ethyl acetate. The ethyl acetate is distilled off and crude mass is stirred with water to obtain a solid precipitate. Finally, the solid obtained is filtered and dried to pale brown crystals of white curcumin. White curcumin is encapsulated with beta-cyclodextrin, which exhibited increased bioavailability. White curcumin also exhibited anti-oxidant and chemopreventive activities.

This application is directed to use of transition metal-ligand complexes to hydrogenate fluorinated esters and carboxamides into fluorinated hemiacetals. Methods for synthesis of certain ligands are also provided.

This application is directed to use of transition metal-ligand complexes to hydrogenate fluorinated esters and carboxamides into fluorinated hemiacetals. Methods for synthesis of certain ligands are also provided.

The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 1,1,2,2-tetrafluoro-1-(trifluoromethoxy)ethane (TFTFME) (E 227), involving reactions in liquid phase and performing reactions, for example, in a (closed) column reactor or in a microreactor, respectively. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by HF-elimination from the compound 1,1,2,2-tetrafluoro-1-(trifluoromethoxy)ethane (TFTFME) (E 227). The invention also relates to a new industrial process for manufacturing of the compound 1,1,2,2-tetrafluoro-1-(trifluoromethoxy)ethane (TFTFME) (E 227) by selective fluorination of the compound HFE-254 (1,1,2,2-tetrafluoro-1-(methoxy)ethane), i.e., perfluorination of only the CH.sub.3O-group (i.e., methoxy-group) of the compound HFE-254 is selectively fluorinated to a CF.sub.3O-group (i.e., trifluoromethoxy-group).

The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 1,1,2,2-tetrafluoro-1-(trifluoromethoxy)ethane (TFTFME) (E 227), involving reactions in liquid phase and performing reactions, for example, in a (closed) column reactor or in a microreactor, respectively. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by HF-elimination from the compound 1,1,2,2-tetrafluoro-1-(trifluoromethoxy)ethane (TFTFME) (E 227). The invention also relates to a new industrial process for manufacturing of the compound 1,1,2,2-tetrafluoro-1-(trifluoromethoxy)ethane (TFTFME) (E 227) by selective fluorination of the compound HFE-254 (1,1,2,2-tetrafluoro-1-(methoxy)ethane), i.e., perfluorination of only the CH.sub.3O-group (i.e., methoxy-group) of the compound HFE-254 is selectively fluorinated to a CF.sub.3O-group (i.e., trifluoromethoxy-group).