Facile perfluoroalkylation of uracils and uridines at the C-5 position
摘要:
Perfluoroalkylation at the C-5 position of uracil has been achieved in yields of 38-56% by the reaction of its bis(trimethylsilyl) derivative with bis(perfluoroalkanoyl) peroxides and the hydrolytic deprotection of the silylated products. A substituent or nitrogen replacement at C-6 does not interfere with perfluoroalkylation at C-5, but no significant reaction occurs at C-6 when C-5 is blocked.
The reactions of 1,4-benzo-, naphtho-, and 9,10-anthraquinones with bis(perfluoroalkanoyl) peroxides gave the corresponding perfluoroalkylated derivatives. Those of 2-methyl- and 2-[4-(chloroanilino)]-1,4-naphthoquinones with bis(oxaperfluoroalkanoyl) peroxides afforded the dichloromethyl and trifluoromethyl derivatives, respectively. Absorption bands of the perfluoroalkylated naphtho- and anthraquinone dyes showed a slight hypsochromic shift. The solubilities of the perfluoroalkylated anthraquinone dyes into hexane were much more higher than those of the non-perfluoroalkylated ones.
FLUORINE-CONTAINING POLYMER HAVING HETEROAROMATIC RING
申请人:Komatsu Yuzo
公开号:US20090105400A1
公开(公告)日:2009-04-23
There is provided a fluorine-containing polymer having an ionic group which has a heteroaromatic ring and is useful as a material comprising various heteroaromatic ring compounds having a stable fluorine-containing heteroaromatic ring, and further a fluorine-containing polymer having a heteroaromatic ring which is useful as a starting material of the above-mentioned polymer or a curing agent. Also, there is provided a fluorine-containing polymer having a heteroaromatic ring such as imidazole in its side chain, a polymer salt thereof, and a polymer composition comprising such a polymer and a polymer salt and a nano filler.
Fluoroalkyl group-containing organosilicon oligomer, method for preparing same and surface treating agent
申请人:NIPPON OIL AND FATS COMPANY, LIMITED
公开号:EP0487094A1
公开(公告)日:1992-05-27
A fluoroalkyl group-containing organosilicon oligomer is represented by the following formula (I) or (IV ) of:
wherein R, R₁, R₂, X and Y each are the same or different groups and stand for an alkyl, alkoxy or alkylcarbonyloxy group having 1 to 10 carbon atoms, n represents an integer of 1 to 3, m₁ and m₃ represent an integer of 1 to 10, m₂ represents an integer of 0 to 10, m₄ represents an integer of 1 to 5 and RF represents
where A stands for a hydrogen atom, a fluorine atom or a chlorine atom, n₁ represents an integer of 1 to 10 and n₂ represents an integer of 0 to 8. A surface treating agent contains the oligomer defined by the formula (I) or (IV ).
PERFLUOROALKYLATED NAPHTHALOCYANINE DERIVATIVE, PRODUCTION THEREOF, AND OPTICAL RECORDING MEDIUM
申请人:NIPPON OIL AND FATS COMPANY, LIMITED
公开号:EP0491951A1
公开(公告)日:1992-07-01
A perfluoroalkylated naphthalocyanine derivative which is excellent in weathering resistance and very highly soluble in various solvents and has a specified structure adapted for film formation; and an optical recording medium produced therefrom which enables recording by means of focused beams of a semiconductor laser. The above derivative is produced by the reaction of a perfluoroalkanoyl peroxide having a specified structure with a naphthalocyanine.
A polymer comprising fluoroalkyl group, a method of preparation thereof, a surface active agent, a surface treatment agent and a coating composition
申请人:NOF CORPORATION
公开号:EP0537669A1
公开(公告)日:1993-04-21
A polymer comprising fluoroalkyl group has a structure in which one or two parts of the fluoroalkyl group at the one or both ends of the molecule are linked to a part of alkylene groups or alkylene groups substituted with halogen, a part of alkylene group substituted with functional groups, such as halogen, cyano group, alkylsulfonic acid group, amidoalkylsulfonic acid group, carboxylic acid group, carboxyl group, oxycarbonyl group, ether group, epoxy group and the like, and/or a part of silicone group. A method of preparation of the polymer comprising fluoroalkyl group contains reaction of a fluoroalkanoyl peroxide with a monomer comprising the functional group or a monomer comprising silicone group. A surface active agent comprises fluoroalkyl group and caroxylic acid salt group. A surface treatment agent comprises the polymer comprising fluoroalkyl group, hydrolysis products thereof, hydrolytic condensation products thereof, and mixtures thereof. A coating composition comprises the polymer comprising fluoroalkyl group. The polymer comprising fluoroalkyl group has excellent water repellency, oil repellency and weatherability because the fluoroalkyl group is introduced into the molecule through carbon-carbon linkage.