Solvents effects in reactions between perfluoroalkyliodides and cadmium
作者:Grace J. Chen、Christ Tamborski
DOI:10.1016/s0022-1139(00)81020-9
日期:1987.7
the other hand ICF2CF2I and C1CF2CFC1I, by a 1,2-dehalogenation reaction, form the olefins CF2 = CF2 and CF2 = CFC1, respectively, as the principal products. The interaction of RfI compounds with cadmium in other solvent media, e.g. diethyl ether. tetrahydrofuran (THF), N,N-dimethylformamide (DMF), and bis(2-methoxyethyl)ether(diglyme) were examined and found to produce a different ratio of RfRf and
全氟有机碘化物(R f I,其中R f = F(CF 3)2 C(CF 2 CF 2)3,nC 6 F 13,nC 8 F 17,F(CF 3)2 COCF 2 CF 2,F之间的相互作用(CF 3)2 CO(CF 2 CF 2)4和C 2 H 5 OC(O)(CF 2 CF 2)与乙腈溶剂介质中的镉混合后,除少量还原产物(R f H)外,主要产生偶联产物(R f R f,产率72-90%)。另一方面,ICF 2 CF 2 I和C1CF 2 CFC1I通过1,2-脱卤反应分别形成烯烃CF 2= CF 2和CF 2= CFC1,作为主要产物。R f I化合物与镉在其他溶剂介质(例如乙醚)中的相互作用。检查了四氢呋喃(THF),N,N-二甲基甲酰胺(DMF)和双(2-甲氧基乙基)醚(二甘醇二甲醚),发现产生不同比例的R fR f和R f H产物。ft *}当前地址:Fluidics Inc.
Perfusate for preserving organ to be transplanted and preserving method
申请人:The Green Cross Corporation
公开号:EP0033402A1
公开(公告)日:1981-08-12
An organ to be transplanted, such as a kidney, can effectively be preserved for an increased period of time by perfusion using a perfusate which is made of a Ringer's solution modified by increasing its potassium ion content to 8-20 meq/liter with a stably emulsified perfluorocarbon compound and dissolved albumin. A preferred concentration of the perfluorocarbon compound, for example perfluorodecalin, is 7.5 to 12.5%(W/V) and that of albumin is 1-8%(W/V) based on the perfusate.
Verfahren zur Herstellung von perlförmigen Biokatalysatoren und ihre Verwendung
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0108246A2
公开(公告)日:1984-05-16
Perlförmige, Mikroorganismen enthaltende Biokatalysatoren werden durch radikalische Polymerisation von Acrylamid und Methylen-bis-acrylamid in wäßrig-organischer Suspension besonders vorteilhaft erhalten, wenn die organische Phase eine hochfluorierte Kohlenstoffverbindung ist. Die so erhaltenen Biokatalysatoren zeigen eine hohe Stabilität und Aktivität und eignen sich für biotechnische Verfahren.
A nutritive emulsion having oxygen-transporting properties, and process for its preparation
申请人:Kabi Pharmacia AB
公开号:EP0220153A1
公开(公告)日:1987-04-29
An emulsion of perfluorocarbon compounds in an aqueous system has oxygen transporting properties. By incorporation of fat of animal or vegetable origin and at least one of the amino acids glycine, serine or phenylalanine, or urea in the emulsion, the stability of the emulsion will be increased to a point where it can be sterilized by autoclaving, and have nutritive properties as well. The invention also concerns the preparation of an emulsion stabilized in the above manner.
A stable concentrated aqueous emulsion of perfluorochemical, a phospholipid and a triglyceride of fatty acids has been demonstrated which has enhanced stability, diminished particle size and heightened tolerance by biological systems. The emulsion has utility as an oxygen transport medium, such as artificial blood. The emulsion can optionally include addition emulsifiers of SURFYNOL®SE surfactant and PLURONIC® P-105 surfactant. The emulsion is produced using an improved emulsification technique.