高分子量全氟化叔醇,R f 1 R f 2 R f 3 C(OH)R f 1 = nC 8 F 17,R f 2 = CF 3,R f 3 = nC 6 F 13;R f 1 =(CF 3)2 CFO(CF 2)4,R f 2 = CF 3,R f 3 = nC 6 F 13,·R f1 = C 3 F 7 O [CF(CF 3)CF 2 O] 2 CF(CF 3),R f 2 = CF 3,R f 3 = nC 6 F 13;R f 1 = nC 8 F 17,R f 2 = CF 3 O [CF 2 CF(CF 3)O] 2(CF 2)2,R f 3 =(CF 3)2 CFO(CF 2)2(IIIa–d)是由(全氟烷基)-和(全氟氧杂烷基)-三甲基硅烷(Ia–d)与氟代酮(IIa–c)反应制得的。已经在不同的实验条件下研究了含有三氟甲基以及较高分子量的全氟取代基的酮。叔醇的产率受溶剂,
Perfluoro tertiary alcohols. II. Synthesis of high molecular weight perfluorinated diketones, keto alcohols and tertiary dialcohols
作者:Grace J. Chen、Loomis S. Chen
DOI:10.1016/s0022-1139(00)80209-2
日期:1992.10
variety of perfluorinated diketones, Pf1C(O)RfaC(O)Rf1 (I), keto alcohols, Rf1Rf2C- (OH)RfaC(O)Rf1 (II), and dialcohols, Rf1Rf2C(OH)RfaC(OH)Rf1Rf2 (III), Rr1 = (CF3)2− CFO(CF2)2, (CF3)2CFO(CF2)4 and CF3O[CF2CF(CF3)O]2(CF2)2; and Rf2 = (CF3)2CFO(CF2)2 and C3F7O[CF(CF3)CF2O]2(CF2)2; and Rfa = (CF2)3, (CF2)8, CF2OCF2CF2OCF2, (CF2)2O(CF2)5O(CF2)2 and (CF2)4O(CF2)4O(CF2)4, have been prepared via perfluoroalkylether
各种全氟二酮,P f 1 C(O)R f a C(O)R f 1(I),酮醇,R f 1 R f 2 C-(OH)R f a C(O)R f 1(II)和二醇,R f 1 R f 2 C(OH)R f a C(OH)R f 1 R f 2(III),R r 1 =(CF 3)2 - CFO(CF 2)2,(CF 3)2 CFO(CF 2)4和CF 3 O [CF 2 CF(CF 3)O] 2(CF 2)2;和R ˚F 2 =(CF 3)2 CFO(CF 2)2和C 3 ˚F 7 -O [CF(CF 3)CF 2 O] 2(CF 2)2 ; 并且R f a =(CF 2)3,(CF 2)8,CF 2 OCF 2 CF 2 OCF 2,(CF 2)2 O(CF 2)5 O(CF 2)2和(CF 2)4 O(CF 2)4 O(CF 2)4,已通过全氟烷基醚锂中间体制备。在二酮与全氟锂试剂的反应中,溶剂和R
A new general synthesis route to 1,1,1-trihalopolyfluoroalkanes
1,1,1-Trichloro- and tribromo polyfluoroalkanes have been synthesized from perfluoroalkyl iodides and anhydrous aluminum chloride and bromide respectively. The reaction is also applicable to perfluoroalkylether iodides, though varying amounts of by-products are formed depending on the structure of the starting iodide.
Thermal decomposition of low-molecular weight perfluoroalkylethers
作者:Kalathil C. Eapen、Loomis S. Chen、Grace J. Chen
DOI:10.1016/s0022-1139(96)03520-8
日期:1997.3
perfluoroalkylethers have been subjected to thermal degradation using a flow pyrolyzer attached to a gas Chromatograph, and the results are compared with thermaldecomposition of two perfluoroalkanes. Both linear and branched ethers were studied. The major degradation products from the ethers were identified by GC/MS. Products due to specific C-O bondfission were detected from only two of the ethers
Perfluoro tertiary alcohols I. Synthesis of high molecular weight perfluorinated monoketones and tertiary alcohols
作者:Grace J. Chen、Loomis S. Chen
DOI:10.1016/s0022-1139(00)80113-x
日期:1991.12
A series of highmolecularweight perfluoro ketones, Rf1C(O)Rf2 (II) and alcohols,Rf1Rf2−Rf3COH(III) [Rf1, Rf2: n-C6F13, (CF3)2CFO(CF2CF2)x (x=1 and 2), C2F5O(C2F4O)yCF2(y=4 and 5), CF3O[CF2CF(CF3)O]2CF2CF2 and C3F7O[CF(CF3)CF2O]2CF2CF2; Rf3:(CF3)2CFOCF2CF2 and C3F7O[CF(CF3)CF2O]2CF2CF2 where Rf1, Rf2 and Rf3 may be thesame or different, has been prepared in good to excellent yields. This was accomplishedby
一系列高分子量全氟酮R f 1 C(O)R f 2(II)和醇R f 1 R f 2 -R f 3 COH(III)[R f 1,R f 2:nC 6 F 13,(CF 3)2 CFO(CF 2 CF 2)x(x = 1和2),C 2 F 5 O(C 2 F 4 O)y CF 2(y= 4和5),CF 3 O [CF 2 CF(CF 3)O] 2 CF 2 CF 2和C 3 F 7 O [CF(CF 3)CF 2 O] 2 CF 2 CF 2;R f 3:(CF 3)2 CFOCF 2 CF 2和C 3 F 7 O [CF(CF 3)CF 2 O] 2 CF 2 CF 2其中R f 1R f 2和R f 3可以相同或不同,已经以良好至优异的产率制备。这通过合适的全氟有机金属试剂与碳酸二乙酯或全氟烷基醚酯在合适的条件下反应以产生对称或不对称的酮(II)来完成。然后使这些酮(II)与在与锂连接