1.1.1- trichloro-2-fluoroethane

C2H2CI3F 1,1,1 -trichloro-2-fluoroethane 2366-36-1 7.960E+09 56.280 1676 C3H5CIO alpha-epichlorohydrin 106-89-8 5.670E-K09 42.560... 

Refrigerant 113 (1,1,2-trichloro-l, 2,2-fluoroethane) Refrigerant 114 (dichlorotetrafluoroethane) Refrigerant 12 (dichlorodifluoromethane) Refrigerant 21 (dichloromonofluoromethane) Resorcinol Rhodium... 

As discussed in Section 8.10, dediazoniation in methanol or ethanol yields mixtures of the corresponding aryl ethers and arenes, except with alcohols of very low nucleo-philicity such as trifluoroethanol, in which the aryl ether is the main product. Therefore aryl ethers are, in general, synthesized by alkylation of the respective phenol. Olah and Wu (1991) demonstrated, however, that phenylalkyl and aryl ethers can be obtained in 46-88% yield from benzenediazonium tetrafluoroborate using alkoxy- and phenoxytrimethylsilanes in solution in Freon 113 (l,l,2-trichloro-l,2,2-tri-fluoroethane) at 55-60 °C with ultrasonic irradiation. As seen from the stoichiometric... 

Unlike petroleum hydrocarbons, organic compounds in general followed a different evolutionary path. Chlorinated solvents are a common group of organic compounds, and are also the most frequently encountered contaminant in groundwater. Common industrial chemicals that are characterized as chlorinated solvents include trichloro-ethene (TCE), 1,1,1-trichloroethane (TCA), tetrachloroethene (PCE) or perchloro-ethylene, chlorofluorocarbon (Freon)-113 (i.e., 1,1,2-trichloroethane or 1,2,2-tri-fluoroethane), and methylene chloride. In 1997, the EPA reported the presence of TCE and PCE in 852 of 945 groundwater supply systems throughout the United States and in 771 of 1420 Superfund sites. 

Chlorofluorocarbon (CFC) replacements have recently been used for their lower stability and because they have carbon-hydrogen bonds, which means that their atmospheric lifetime is expected to be much shorter than those of CFCs. The adsorption properties of l,l,2-trichloro-l,2,2-trifluoroethane (CFC 113) and its replacement compounds, l,l-dichloro-2,2,2-trifluoroethane (HCFC123), 1,1-dichloro-l-fluoroethane (HCFC141b), and l,l-dichloro-l,2,2,3,3-pentafluoropropane (HCFC225ca) on four kinds of activated carbons were investigated. The adsorption isotherms of inhalational anesthetics (halothane, chloroform, enflurane, isoflurane, and methoxyflurane) on the activated carbon were measured to evaluate the action mechanism of inhalational anesthesia. The anesthesia of CFC replacements can be estimated by the Freundlich constant N of the adsorption isotherms (Tanada et al., 1997). 

The rate constants, kadd, obtained from the LFP experiments for addition of the perfluoro-n-alkyl radicals to the various alkenes in l,2,2-trichloro-l,l,2-tri-fluoroethane (FI 13) are given in Table 7. It can be seen that such radicals are much more reactive than their hydrocarbon counterparts, particularly in additions to electron-rich alkenes, with n-C3F7 adding to 1-hexene 30000 times faster, and to styrene 350 times faster than an n-alkyl radical [ 114,115]. 

The use of extracellular lipases of microbial origin to catalyze the stereoselective hydrolysis of esters of 3-acylthio-2-methylpropionic acid in an aqueous system has been demonstrated to produce optically active 3-acylthio-2-methyl-propionic acid [41-43], The synthesis of the chiral side chain of captopril by the lipase-catalyzed enantioselective hydrolysis of the thioester bond of racemic 3-acetylthio-2-methylpropionic acid (15) to yield 5 -(-)-(15) has been demonstrated [44], Among various lipases evaluated, lipase from Rhizopus oryzae ATCC 24563 (heat-dried cells), BMS lipase (extracellular lipase derived from the fermentation of Pseudomonas sp. SC 13856), and lipase PS-30 from Pseudomonas cepacia in an organic solvent system (l,l,2-trichloro-l,2,2-tri-fluoroethane or toluene) catalyzed the hydrolysis of thioester bond of undesired enantiomer of racemic (15) to yield desired S-(-) (15), R-(+)-3-mercapto-2-methylpropionic acid (16) and acetic acid (17) (Fig. 8A). The reaction yield of... 

Chemical Name Trichloro- fluoromethane Dichlorodi- fluoTomethane Dichlorofluoro- ethane Dichlorolri- fluoroethane Tetrafluoro- ethane... 

Fluorocarbon-114 Fluorocarbon-21 1.2- Dichloro- Dichlorofluoro- 1.1.2.2- tetra- methane fluoroethane Fluorocarbon-113 1.1.2- Trichloro- 1.2.2- trifluoro-ethane... 

H2O Water 100 C2HCI3 chlorotri- fluoroethane Trichloro- 86.2 C3H6O... 

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