摘要:
The present invention relates to a polymerizable monomer represented by the general formula (1), wherein R1 is a hydrogen atom, a halogen atom, a hydrocarbon group or a fluorine-containing alkyl group; R2 is a straight-chain or branched alkyl group, a cyclic alkyl group, an aromatic group, or a substituent having at least two of these groups, the R2 being optionally partially fluorinated; R3 is a hydrogen atom, a hydrocarbon group that is optionally branched, a fluorine-containing alkyl group, or a cyclic group having an aromatic or alicyclic structure, the R3 optionally containing a bond of an oxygen atom or carbonyl group; and n is an integer of 1-2.
摘要翻译:本发明涉及由通式(1)表示的可聚合单体,其中R 1是氢原子,卤素原子,烃基或含氟烷基; R 2是直链或支链烷基,环状烷基,芳族基团或具有这些基团中至少两个的取代基,R 2任选地被部分氟化; R 3是氢原子,任选支链的烃基,含氟烷基或具有芳族或脂环结构的环状基团,R 3任选地含有氧原子或羰基的键 组; n为1-2的整数。
摘要:
Provided is a reaction reagent for trifluoromethylation with high general versatility and good efficiency.The reaction reagent for trifluoromethylation contains an iron compound, trifluoromethyl iodide, a sulfoxide and a peroxide, and may further contain an acid. The iron compound is, for example, iron(II) sulfate, ammonium iron(II) sulfate, iron(II) tetrafluoroborate, ferrocene, bis(η5-pentamethylcyclopentadienyl)iron or an iron powder; the sulfoxide is, for example, dimethyl sulfoxide; the peroxide is, for example, hydrogen peroxide or hydrogen peroxide-urea composite; and the acid is, for example, sulfuric acid, tetrafluoroboric acid or trifluoromethanesulfonic acid.
摘要:
Provided is a reaction reagent for trifluoromethylation with high general versatility and good efficiency.The reaction reagent for trifluoromethylation contains an iron compound, trifluoromethyl iodide, a sulfoxide and a peroxide, and may further contain an acid. The iron compound is, for example, iron(II) sulfate, ammonium iron(II) sulfate, iron(II) tetrafluoroborate, ferrocene, bis(η5-pentamethylcyclopentadienyl)iron or an iron powder; the sulfoxide is, for example, dimethyl sulfoxide; the peroxide is, for example, hydrogen peroxide or hydrogen peroxide-urea composite; and the acid is, for example, sulfuric acid, tetrafluoroboric acid or trifluoromethanesulfonic acid.
摘要:
The present invention provides an epoxy resin composition that is excellent in thermal conductivity and has improved high-temperature resistance and handleability. The epoxy resin composition comprises an epoxy compound having a mesogenic skeleton and a curing agent having a biphenylaralkyl skeleton. The biphenylaralkyl skeleton-containing curing agent preferably has a softening point of 110° C. or lower. The biphenylaralkyl skeleton-containing curing agent is preferably an amorphous curing agent.
摘要:
The present invention relates to a polymerizable monomer represented by the general formula (1), wherein R1 is a hydrogen atom, a halogen atom, a hydrocarbon group or a fluorine-containing alkyl group; R2 is a straight-chain or branched alkyl group, a cyclic alkyl group, an aromatic group, or a substituent having at least two of these groups, the R2 being optionally partially fluorinated; R3 is a hydrogen atom, a hydrocarbon group that is optionally branched, a fluorine-containing alkyl group, or a cyclic group having an aromatic or alicyclic structure, the R3 optionally containing a bond of an oxygen atom or carbonyl group; and n is an integer of 1-2.
摘要翻译:本发明涉及由通式(1)表示的可聚合单体,其中R 1是氢原子,卤素原子,烃基或含氟烷基; R 2是直链或支链烷基,环状烷基,芳族基团或具有这些基团中的至少两个的取代基,R 2是 任选部分氟化; R 3是氢原子,任选支链的烃基,含氟烷基或具有芳族或脂环结构的环状基团,R 3, 任选地含有氧原子或羰基的键; n为1-2的整数。
摘要:
An epoxy prepolymer having excellent thermal conductivity is obtained by reacting an epoxy compound having a mesogenic skeleton and a trinuclear bisphenol represented by the following formula: (wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and R12 represents a hydrogen atom or an alkyl group and each may be the same or different while at least one represents an alkyl group).
摘要:
A process for producing a fluorine-containing acrylic acid ester represented by CH2═C(Rf)(COOR) characterized in that 1-bromo-1-perfluoroalkylethene represented by CH2═CBr—Rf, or 1,2-dibromo-1-perfluoroalkylethane represented by CH2CBr—CHBr—Rf is allowed to react with an alcohol represented by ROH in the presence of a palladium catalyst, carbon monoxide, and two or more kinds of bases. The fluorine-containing acrylic acid ester is a useful compound having wide applications in materials for pharmaceuticals and functional polymers.
摘要:
Nucleobases are perfluoroalkylated in a one step process with a perfluoroalkyl halide in the presence of a sulfoxide, a peroxide and an iron compound. Compounds so produced are useful as medicinal drugs, intermediates for medicinal drugs and agricultural chemicals.
摘要:
The present invention relates to a polymerizable monomer represented by the general formula (1), wherein R1 is a hydrogen atom, a halogen atom, a hydrocarbon group or a fluorine-containing alkyl group; R2 is a straight-chain or branched alkyl group, a cyclic alkyl group, an aromatic group, or a substituent having at least two of these groups, the R2 being optionally partially fluorinated; R3 is a hydrogen atom, a hydrocarbon group that is optionally branched, a fluorine-containing alkyl group, or a cyclic group having an aromatic or alicyclic structure, the R3 optionally containing a bond of an oxygen atom or carbonyl group; and n is an integer of 1-2.
摘要:
Provided is a simple and efficient production process of a nucleobase having a perfluoroalkyl group.A nucleobase (for example, uracils, cytosines, adenines, guanines, hypoxanthines, xanthines, or the like) is reacted with a perfluoroalkyl halide in the presence of a sulfoxide, a peroxide and an iron compound to produce a perfluoroalkyl-substituted nucleobase, which is useful as an intermediate for medical drugs, economically.