摘要:
A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms.
摘要:
A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms.
摘要:
A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms.
摘要:
A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms.
摘要:
Disclosed are fluorinated diene alcohols perferably having a fluorine content of at least about 45 weight percent and having a plurality of moieties of the formula CFx and a plurality of moieties of the formula CHx, where each x is independently 1, 2 or 3 and where each CFx moiety is not directly bonded to another CFx moiety. Methods of synthesizing fluorinated diene alcohol compounds are also disclosed comprising reacting at least one C2-C3 alkene halide with at least one reactant of the formula (II): where Z is OH, OR6, OC(O)R7, or a halogen, R6 is a C1-C6 branched or straight chain alkyl, and R7 is a C1-C6 branched or straight chain alkyl or fluoroalkyl,
摘要翻译:公开的氟化二烯醇优选具有至少约45重量%的氟含量并且具有多个式CF x X的部分和多个式CH x x的部分, 其中每个x独立地为1,2或3,并且其中每个CF x X部分不直接键合到另一个CF x X部分。 还公开了合成氟化二烯醇化合物的方法,包括使至少一种C 2 -C 3 -C 3烯烃卤化物与至少一种式(II)的反应物反应:其中Z 是OH,OR 6,OC(O)R 7或卤素,R 6是C 1 H 12 C 6 -C 6支链或直链烷基,R 7是C 1 -C 6 -C 6支链或直链烷基, 直链烷基或氟烷基,
摘要:
Monomers and polymers useful for forming photoresists are provided. More particularly, photoresists, as well as monomers and polymers for photoresists useful in micro-lithography, specifically monomers bearing acid-labile groups of reduced optical density. The resulting photoresists exhibit improved transparency to 157 nm light. The photoresist compositions are composed of a mixture of at least one water insoluble, acid decomposable polymer which is prepared from at least one monomeric unit which comprises an acid labile group of the formula —OC(CH3)2CF3 and which is substantially transparent to ultraviolet radiation at a wavelength of about 157 nm and at least one photoacid generator capable of generating an acid upon exposure to sufficient activating energy at a wavelength of about 157 nm.
摘要:
Monomers and polymers useful for forming photoresists. More particularly, photoresists, as well as monomers and polymers for photoresists useful in micro-lithography, specifically monomers bearing acid-labile groups of reduced optical density. The resulting photoresists exhibit improved transparency to 157 nm light. The photoresist compositions are composed of a mixture of at least one water insoluble, acid decomposable polymer which is prepared from at least one monomer having a monomeric unit structure which comprises: where Hal=F, Cl or Br and X=H or F; and which is substantially transparent to ultraviolet radiation at a wavelength of about 157 nm, and at least one photoacid generator capable of generating an acid upon exposure to sufficient activating energy at a wavelength of about 157 nm.
摘要:
Provided is a method for selectively preparing 2-chloropentafluoropropene comprising catalytic dechlorination of 1,2,2-trichloro-1,1,3,3,3-pentafluoropropane in the presence of hydrogen and a noble metal catalyst. Also provided is method for dechlorinating a vicinal chloride substituted organic compound using a palladium/barium sulfate catalyst.
摘要:
Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated alcohols. Fluorinated alcohols of the formulae HOCHRCF(CF3)CHFCF(CF3)2 and HOCHRCF(CF(CF3)2)CHFCF3, HOCHRCF(CF2CF3)CH(CF3)2 and HOCHRC(CF3)2CHFCF2CF3 are made by heating a mixture of a borate of the formula (RCH2O)3B, wherein R═H or a C1 to C7 alkyl group, with perfluoro-4-methyl-2-pentene or perfluoro-2-methyl-2-pentene and a free-radical initiator to form a mixture of borates, optionally separating the mixture of borates from any reactants, solvents, and by-products; hydrolyzing the mixture of borates to form a hydrolysis product mixture; and separating the alcohols from the hydrolysis product mixture.
摘要:
Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated alcohols. Fluorinated alcohols of the formulae HOCHRCF(CF3)CHFCF(CF3)2 and HOCHRCF(CF(CF3)2)CHFCF3, HOCHRCF(CF2CF3)CH(CF3)2 and HOCHRC(CF3)2CHFCF2CF3 are made by heating a mixture of a borate of the formula (RCH2O)3B, wherein R═H or a C1 to C7 alkyl group, with perfluoro-4-methyl-2-pentene or perfluoro-2-methyl-2-pentene and a free-radical initiator to form a mixture of borates, optionally separating the mixture of borates from any reactants, solvents, and by-products; hydrolyzing the mixture of borates to form a hydrolysis product mixture; and separating the alcohols from the hydrolysis product mixture.