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:
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:
Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane.
摘要:
Disclosed is a method for producing fluorinated organic compounds, including hydrofluoropropenes, which preferably comprises converting at least one compound of formula (I): CF3CFnCHmXa-m (I)to at least one compound of formula (II) CF3CZCHZ (II).where each X is independently Cl, I or Br; each Z is independently H or F; n is 1 or 2; m is 1, 2 or 3, provided that when n is 1, m is 1 or 2; a is 2 or 3, and a-m≧0. Certain embodiments include the step of reacting fluorinated C2 olefin, such as tetrafluoroethylene, with a Cl addition agent under conditions effective to produce a compound of formula (I).
摘要:
Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane.
摘要:
Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene comprising: a) reacting a compound of the formula (I) CHFX2 with a compound of formula (II) CH2═CF2 to produce a reaction product comprising a compound of formula (III) CHXFCH2CXF2, wherein each X is independently selected from the group consisting of chlorine, bromine and iodine; and (b) exposing said compound of formula (III) to reaction conditions effective to convert said compound to 1,3,3,3-tetrafluoropropene.
摘要:
Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane.
摘要:
A method for preparing fluorinated organic compounds comprising contacting hydrogen fluoride with at least one compound of formula I: CX3CXYCH3 Iwhere each X is independently Cl, I or Br, and each Y is independently H or F, said contacting step being carried out under conditions effective to produce a compound of formula II CF3CZCH2 IIwhere Z is Cl, I, Br, or F.
摘要翻译:一种制备氟化有机化合物的方法,包括使氟化氢与至少一种式I化合物接触:<?in-line-formula description =“In-Line Formulas”end =“lead”→> 3 SUB >其中每个X独立地为Cl,I或Br,并且每个Y独立地为H,其中每个X独立地为H, 或F,所述接触步骤在有效产生式II化合物的条件下进行。&lt;线内公式描述=“在线配方”末端=“铅”→CF 3 CZCH II II <?in-line-formula description =“In-line Formulas”end =“tail”?>其中Z是Cl,I,Br或F.
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:
Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane.