L Chloro-2-bromoethane

KOH —> ethylene. Cl —> 1-chloro-l-bromo-ethane + 2-chloro-l-bromoethane. 

Vapors of crude l,l,2-trifluoro-2-chloro-l-bromoethane passed at 95-98° during 10.25 hrs. through a vertical tube filled with AlClg halothane. Y 87% purity... 

Trifluoromethyl)-2-(2-chloro)ethoxy-l-bromoethane (3-Trifluoromethyl)phenyl magnesium bromide is prepared under the normal conditions for magnesium derivatives, from 48.6 g of magnesium turnings and 455.7 g of (3-trifluoromethyl)bromobenzeneand 1.5 liters anhydrous ether. 

Trifluoromethyl)phenyl-4-isopropyl tetrahydro-l,4-oxazine hydrochloride The following mixture is heated in an autoclave at 100°C 2-(3-trifluoromethyl)-2-(2-chloro)-ethoxy-l-bromoethane 33.15 g (0.1 mol) isopropylamine 20 g (0.34 mol) toluene 100 ml. 

Acetone, bromoethane, butane, chloroethane, 2-chloropropane, 1,3-cyclopenta-diene, dibromodifluoromethane, 1,1-dichloroethane, 1,1-dichloroethene, 1,2-di-chloro-l,l,2,2-tetra luoroethane, diethylether, dimethoxymethane, dimethylpro-pane, 1,3-epoxypropane, ethyl formate, glyoxal, methyl acetate, methylbutane, methyl formate, methylpropane, -pentane, propanal. 

The versatility of TOT in clathrate formation is further illustrated by the discovery of several other clathrate types belonging to various space groups PT (/raw-stilbene, cw-stilbene a-bromobutyric acid benzene ) Pl(PT) (methyl tran -cinnamate, methyl cw-cinnamate) P2 (weso-2,3-butanediol carbonate) P2j/c (weTO-2,3-di-bromobutane) C2jc (3-bromooctane ethyl a-bromobuty-rate ° ) Pbca (l,l,l-trifluoro-2-chloro-2-bromoethane) Pbcn (dl-2,3-dibromobu-tane) hexagonal R (a-chlorotetrahydropyran) The clathrates for which X-ray crystal structure determinations have been completed are indicated in Table 1. 

Unsatd. compounds are formed during electroreduction of compounds containing different halogen atoms at neighboring carbon atoms.—E 1,1,1-Trifluoro-2-chloro-2-bromoethane electrolyzed at a Pb-cathode and a current density of 0.02 A/cm in alkaline medium l,l-difluoro-2-chloroethylene. Y 70%. L. G. Feoktistov, A. P. Tomilov, and M. M. Gol din, Izvest. 1963, 1352 G. A. 59, 12624f. 

An aq. soln. of Na-sulfite and NaOH or KOH added with stirring at 65-72 to l,l,l-trifluoro-2-chloro-2,2-dibromoethane with distillation of the product -> l,l,l-trifluoro-2-chloro-2-bromoethane. Y 80-90%. H. Madai and R. Muller, J. pr. 19, 83 (1963). 

Fig. 3 Chart illustrating the superconducting transition temperatures as a function of solvent and anion in the KL-(BEDT-TTF)M(CF3)4(l,l,2-trihaloethane) (M = Cu, Ag and Au) series. 1120 is 1,1,2-trichoroethane, lBrl2Cl is l-bromo-l,2-dichloroethane, llC12Bris 1,1-dichloro-2-bromoethane, lC112Br is 1-chloro-1,2-dibromoethane and 112Bris 1,1,2-tribromoethane...

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