The first fluorous biphase hydrogenation catalyst incorporating a perfluoropolyalkylether: [RhCl(PPh2(C6H4C(O)OCH2CF(CF3)(OCF2CF(CF3))nF))3] with n=4–9
作者:Chadron M. Friesen、Craig D. Montgomery、Sebastian A.J.U. Temple
DOI:10.1016/j.jfluchem.2012.09.001
日期:2012.12
incorporated into tris(4-diphenylphosphino) pHFPO methylene benzoate rhodium chloride 4. Partition coefficients in perfluoromethylcyclohexane (PFMCH):toluene were determined using 19F NMR spectroscopy for both 2 and 4 as 98:2 and 81:19, respectively. Compound 4 was also shown to function as a fluorous biphase catalyst, catalyzing the hydrogenation of 2-cyclohexen-1-one in biphasic (1:1 toluene:PFMCH;
氧化膦(4-二苯基次膦酰基)聚(六氟氧化丙烯)苯甲酸亚甲基酯[[C 6 H 5)2 P(O)(C 6 H 4 C(O)OCH 2 CF(CF 3)(OCF 2 CF(CF 3))ñ F](与ñ = 4-9)1,是由[4-二苯膦基]苯甲酰氯与聚(六氟环氧丙烷)(pHFPO)亚甲基醇和三乙胺的反应来制备。随后还原1与HSiCl 3产生膦2,(4-二苯基膦基)pHFPO苯甲酸二甲酯,[(C 6ħ 5)2 P(C 6 H ^ 4 C(O)OCH 2 CF(CF 3)(OCF 2 CF(CF 3))ñ ] F。,膦配体2被并入三(4-二苯基膦基)pHFPO亚甲基苯甲酸氯化铑4在全氟甲基环己烷分配系数(PFMCH):使用测定甲苯19 F NMR光谱两者2和4为98:2和81:19,分别合成化合物4也显示出可以用作氟双相催化剂,催化2-环己烯-1-酮在双相中的氢化反应(1:1甲苯:PFMCH; 1:3:3甲苯:己烷:Krytox®K6
Syntheses, structures, and stabilities of aliphatic and aromatic fluorous iodine(I) and iodine(III) compounds: the role of iodine Lewis basicity
作者:Tathagata Mukherjee、Soumik Biswas、Andreas Ehnbom、Subrata K Ghosh、Ibrahim El-Zoghbi、Nattamai Bhuvanesh、Hassan S Bazzi、John A Gladysz
DOI:10.3762/bjoc.13.246
日期:——
4-(Rf8CH2CH2)2C6H3I (77-93%). The former, the crystal structure of which is determined, reacts with Cl2 to give a 75:25 ArICl2/ArI mixture, but partial Cl2 evolution occurs upon work-up. The latter gives the easily isolated dichloride 1,2,4-(Rf8CH2CH2)2C6H3ICl2 (89%). The relative thermodynamic ease of dichlorination of these and other iodine(I) compounds is probed by DFT calculations.
일반식 [CFOCF(CF)CFO}CF(CF)CHO]PO(OH) (여기에서, n은 1〜20의 정수임)로 표시되는 퍼플루오로폴리에테르인산에스테르. 이 화합물은 일반식 CFOCF(CF)CFO}CF(CF)CHOH 로 표시되는 퍼플루오로폴리에테르알코올을 옥시염화인과 반응시켜, 얻어진 일반식 [CFOCF(CF)CFO}CF(CF)CHO]POCl 로 표시되는 화합물을 가수분해함으로써 제조된다. 또한 이 퍼플루오로폴리에테르인산에스테르 또는 그 염은 그것을 유효성분으로 하는 표면처리제를 형성시킨다.
Fluorine-containing copolymer, composition for forming film, and optical film
申请人:FUJIFILM Corporation
公开号:US11078314B2
公开(公告)日:2021-08-03
A copolymer includes a repeating unit of Formula (I) and a repeating unit of Formula (II), a composition includes the copolymer, and an optical film has a layer formed of the composition,
in the Formulae (I) and (II), R1 and R2 represent a hydrogen atom or an alkyl group, L3 and L1 represent a divalent linking group, L2 represents a single bond or a divalent linking group, and L4 represents a single bond or a divalent linking group, L4 does not represent a linking group including —O(C═O)—NH—, X represents a perfluoropolyether group, an alkyl group having a branched structure in which hydrogen is all substituted into fluorine, an alkenyl group, or an alkynyl group, and Y represents a crosslinking group.
CONTACT MEMBER, CONNECTOR, COMPOSITION, AND METHOD FOR PRODUCING CONTACT MEMBER
申请人:Japan Aviation Electronics Industry, Limited
公开号:US20220416460A1
公开(公告)日:2022-12-29
The present invention provides a contact member that strikes a balance between low electrical resistance and sliding durability under the condition of load as low as about
0.1
N. A contact member of the invention has a metal base and a coating disposed on at least part of the metal base. The coating contains fluorinated oil having a polar group, and metal particles surface-treated with a fluorine-based compound having a polar group.