Patent classifications
C07C41/22
New Industrial Process for Manufacturing of Perfluoro (Methyl Vinyl Ether)(PFMVE) and of 1,1,2,2-Tetrafluoro-1-(Trifluoromethoxy)ethane (TFTFME)
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).
New Industrial Process for Manufacturing of Perfluoro (Methyl Vinyl Ether)(PFMVE) and of 1,1,2,2-Tetrafluoro-1-(Trifluoromethoxy)ethane (TFTFME)
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).
Industrial Process for Manufacturing of Perfluoro (Methyl Vinyl Ether)(PFMVE) and of 2-Fluoro-1,2-Dichloro-Trifluoromethoxyethylene (FCTFE)
The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 2-fluoro-1,2-dichloro-trifluoro-methoxyethylene (FCTFE), involving reactions in liquid phase and performing reactions in a microreactor. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by fluorination, i.e., perfluorination, of 2-fluoro-1,2-dichloro-trifluoromethoxy-ethylene (FCTFE) with HF (hydrogen fluoride) in the presence of a Lewis acid catalyst, again performing the reaction in liquid phase, and preferably in a microreactor.
Industrial Process for Manufacturing of Perfluoro (Methyl Vinyl Ether)(PFMVE) and of 2-Fluoro-1,2-Dichloro-Trifluoromethoxyethylene (FCTFE)
The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 2-fluoro-1,2-dichloro-trifluoro-methoxyethylene (FCTFE), involving reactions in liquid phase and performing reactions in a microreactor. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by fluorination, i.e., perfluorination, of 2-fluoro-1,2-dichloro-trifluoromethoxy-ethylene (FCTFE) with HF (hydrogen fluoride) in the presence of a Lewis acid catalyst, again performing the reaction in liquid phase, and preferably in a microreactor.
DIRECT AROMATIC CARBON-OXYGEN AND CARBON-HYDROGEN BOND FUNCTIONALIZATION VIA ORGANIC PHOTOREDOX CATALYST
The invention generally relates to methods of making substituted arenes via direct C—H, C—O, C—S, or C—N bond conversion and methods of synthesizing isotopically-labeled substituted arenes via direct carbon-halogen bond conversion. The invention also relates to anaerobic catalyst systems comprising an acridinium photocatalyst and a nucleophile selected from a halide, a cyanide, and an isotopically-labeled amine. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
DIRECT AROMATIC CARBON-OXYGEN AND CARBON-HYDROGEN BOND FUNCTIONALIZATION VIA ORGANIC PHOTOREDOX CATALYST
The invention generally relates to methods of making substituted arenes via direct C—H, C—O, C—S, or C—N bond conversion and methods of synthesizing isotopically-labeled substituted arenes via direct carbon-halogen bond conversion. The invention also relates to anaerobic catalyst systems comprising an acridinium photocatalyst and a nucleophile selected from a halide, a cyanide, and an isotopically-labeled amine. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
DIRECT AROMATIC CARBON-OXYGEN AND CARBON-HYDROGEN BOND FUNCTIONALIZATION VIA ORGANIC PHOTOREDOX CATALYST
The invention generally relates to methods of making substituted arenes via direct C—H, C—O, C—S, or C—N bond conversion and methods of synthesizing isotopically-labeled substituted arenes via direct carbon-halogen bond conversion. The invention also relates to anaerobic catalyst systems comprising an acridinium photocatalyst and a nucleophile selected from a halide, a cyanide, and an isotopically-labeled amine. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
PRODUCTION METHOD OF BIARYLPHOSPHINE
A production method by which a biarylphosphine useful as a Buchwald phosphine ligand can be obtained in high purity is provided through an industrially advantageous process. The production method of a biarylphosphine comprises a step A of reacting a lithiated product obtained through lithiation of a halogenated benzene derivative with a benzene derivative to obtain a biphenyl derivative, and a step B of the reacting the biphenyl derivative with a halogenated phosphine. In the step A, the charge molar ratio of the halogenated benzene derivative to the benzene derivative is preferably 1.0 to 5.0.
PRODUCTION METHOD OF BIARYLPHOSPHINE
A production method by which a biarylphosphine useful as a Buchwald phosphine ligand can be obtained in high purity is provided through an industrially advantageous process. The production method of a biarylphosphine comprises a step A of reacting a lithiated product obtained through lithiation of a halogenated benzene derivative with a benzene derivative to obtain a biphenyl derivative, and a step B of the reacting the biphenyl derivative with a halogenated phosphine. In the step A, the charge molar ratio of the halogenated benzene derivative to the benzene derivative is preferably 1.0 to 5.0.
CELLULOSIC COMPLEX AND APPLICATIONS THEREOF
The present invention provides a polysaccharide supported fluorinating agents which can be used in fluorination reactions. The invention particularly describes a new bacterial cellulose supported tetra-n-butyl ammonium fluoride complex [NBu4(Bac-Cell-OH)F] which is stable and non-hygroscopic. The invention further relates to a process for fluorination using the [NBu4(Bac-Cell-OH)F] complex.