Patent classifications
C07C49/403
CHROMIUM-CATALYZED REACTIONS OF CARBON MONOXIDE WITH HYDROCARBONS IN THE PRESENCE OF UV LIGHT
A hydrocarbon compound and carbon monoxide are reacted in the presence of either a supported chromium (VI) catalyst or a supported chromium (II) catalyst, optionally with UV-visible light irradiation and/or exposure to an oxidizing atmosphere, followed by removing a reaction product containing an alcohol compound and/or a carbonyl compound from the respective chromium catalyst. Often, the reaction product contains one or more ketone and/or aldehyde compounds.
CHROMIUM-CATALYZED REACTIONS OF CARBON MONOXIDE WITH HYDROCARBONS IN THE PRESENCE OF UV LIGHT
A hydrocarbon compound and carbon monoxide are reacted in the presence of either a supported chromium (VI) catalyst or a supported chromium (II) catalyst, optionally with UV-visible light irradiation and/or exposure to an oxidizing atmosphere, followed by removing a reaction product containing an alcohol compound and/or a carbonyl compound from the respective chromium catalyst. Often, the reaction product contains one or more ketone and/or aldehyde compounds.
Perfluorinated Allyl Ethers and Perfluorinated Allyl Amines and Methods of Making and Using the Same
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Described herein is a method to synthesize a perfluorinated allyl ether compound of formula (I) or a perfluorinated allyl amine compound of formula (II) Where R.sub.f.sup.1 and R.sub.f.sup.2 are (i) independently selected from a perfluorinated alkyl group comprising 1-7 carbon atoms, a perfluorinated aryl group comprising a 5- or 6-membered ring, or combinations thereof, and optionally comprising one or more catenated heteroatoms selected from N or O; or (ii) bonded together to form a perfluorinated ring structure having 4-8 ring carbon atoms, optionally comprising at least one catenated O or N atom; and R.sub.f.sup.3 is a perfluorinated alkyl group comprising 1-3 carbon atoms. The resulting perfluorinated allyl ether compounds disclosed herein may be used in polymer synthesis.
Perfluorinated Allyl Ethers and Perfluorinated Allyl Amines and Methods of Making and Using the Same
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Described herein is a method to synthesize a perfluorinated allyl ether compound of formula (I) or a perfluorinated allyl amine compound of formula (II) Where R.sub.f.sup.1 and R.sub.f.sup.2 are (i) independently selected from a perfluorinated alkyl group comprising 1-7 carbon atoms, a perfluorinated aryl group comprising a 5- or 6-membered ring, or combinations thereof, and optionally comprising one or more catenated heteroatoms selected from N or O; or (ii) bonded together to form a perfluorinated ring structure having 4-8 ring carbon atoms, optionally comprising at least one catenated O or N atom; and R.sub.f.sup.3 is a perfluorinated alkyl group comprising 1-3 carbon atoms. The resulting perfluorinated allyl ether compounds disclosed herein may be used in polymer synthesis.
Chromium-catalyzed production of alcohols from hydrocarbons in the presence of oxygen
Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and either a supported chromium (VI) catalyst or a supported chromium (II) catalyst are contacted, optionally with UV-visible light irradiation, followed by exposure to an oxidizing atmosphere and then hydrolysis to form a reaction product containing the alcohol compound and/or the carbonyl compound. The presence of oxygen significant increases the amount of alcohol/carbonyl product formed, as well as the formation of oxygenated dimers and trimers of certain hydrocarbon reactants.
Chromium-catalyzed production of alcohols from hydrocarbons in the presence of oxygen
Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed in which the hydrocarbon reactant and either a supported chromium (VI) catalyst or a supported chromium (II) catalyst are contacted, optionally with UV-visible light irradiation, followed by exposure to an oxidizing atmosphere and then hydrolysis to form a reaction product containing the alcohol compound and/or the carbonyl compound. The presence of oxygen significant increases the amount of alcohol/carbonyl product formed, as well as the formation of oxygenated dimers and trimers of certain hydrocarbon reactants.
Systems and methods for purifying solvents
The present disclosure is directed to methods and systems of purifying solvents. The purified solvents can be used, e.g., as pre-wet liquids, solution developers, and cleaners in a multistep semiconductor manufacturing process.
Systems and methods for purifying solvents
The present disclosure is directed to methods and systems of purifying solvents. The purified solvents can be used, e.g., as pre-wet liquids, solution developers, and cleaners in a multistep semiconductor manufacturing process.
NOVEL FRAGRANCES WITH ROSE SCENT
The present invention primarily concerns the use of compounds of the following formula (I)
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wherein X represents an oxygen atom, a —CHO, an —OH, or a —CH.sub.2OH group, a single bond or a double bond is present at the respective location of one of the dotted lines, at least one double bond is present when X is an OH group, and the 3-isopentyl or 3-isopent-2-enyl residue is connected to the ring in the ortho, meta, or para position to the X group, as perfuming and/or flavouring agents.
The invention further relates to fragrance and flavour compositions containing one or more of these compounds, perfumed or flavoured articles comprising one or more of these compounds and corresponding processes for imparting, modifying and/or enhancing certain odour notes.
NOVEL FRAGRANCES WITH ROSE SCENT
The present invention primarily concerns the use of compounds of the following formula (I)
##STR00001##
wherein X represents an oxygen atom, a —CHO, an —OH, or a —CH.sub.2OH group, a single bond or a double bond is present at the respective location of one of the dotted lines, at least one double bond is present when X is an OH group, and the 3-isopentyl or 3-isopent-2-enyl residue is connected to the ring in the ortho, meta, or para position to the X group, as perfuming and/or flavouring agents.
The invention further relates to fragrance and flavour compositions containing one or more of these compounds, perfumed or flavoured articles comprising one or more of these compounds and corresponding processes for imparting, modifying and/or enhancing certain odour notes.