Carbon tetrachloride, reaction with

The proposed hydride formation is conlirmed by the results of interaction with carbon tetrachloride. Reaction with CCI4 (equation 12.8) is a generally accepted test for metal-hydrogen (M-H) bonds (25). 

Chlorine reacts with saturated hydrocarbons either by substitution or by addition to form chlorinated hydrocarbons and HCl. Thus methanol or methane is chlorinated to produce CH Cl, which can be further chlorinated to form methylene chloride, chloroform, and carbon tetrachloride. Reaction of CI2 with unsaturated hydrocarbons results in the destmction of the double or triple bond. This is a very important reaction during the production of ethylene dichloride, which is an intermediate in the manufacture of vinyl chloride ... 

J. L. Gay Lussac and L. J. Thenard 5 showed in 1811 that if many of the metallic oxides be intimately mixed with carbon the reaction with chlorine proceeds more readily than with the oxide alone the metal chloride and carbon monoxide or dioxide are the products of the reaction. M. le Quesneville and F. Wohler used this process for aluminium chloride, chromic chloride, silicon tetrachloride, etc., and C. Baskerville for thorium tetrachloride. 

Side-chain bromination frequently accompanies annular brominations when reagents or conditions conducive to homolytic reactions are used. When NBS in carbon tetrachloride reacted with l,3-dimethyl-2-pyridone a 96% yield of the 5-bromo derivative resulted with added benzoyl peroxide the product was 3-bromomethyl-l-methyl-2-pyridone (63%) (76JOC2065), and there are other examples (85CHE1399). 

Xenon difluoride reacts also with some halosubstituted alkanes18,19 at room temperature in chloroform, carbon tetrachloride, dichloromethane or bromoform, and depending on the nature of the solvent used chloro or bromo derivatives are isolated with imidazo-(l,2-fr)-pyridazine18. Carbon tetrachloride reacts with xenon difluoride at 180°C, while room-temperature transformations are achieved when various catalysts [antimony trifluoride, tantalum(V) fluoride or silica dioxide] are used, whose structure also influences the product distribution20. Tris(fluorosulfonyl)methane gives a fluoro-substi-tuted product in its reaction with xenon difluoride in difluorodichloromethane21. 

Much of the early work with ruthenium tetroxide also made use of stoichiometric amounts of a solution of the reagent in an inert solvent, such as carbon tetrachloride. Reactions were carried out at room temperature. The general acceptance of the reagent as a powerful wide-ranging oxidant, coupled with the expense of ruthenium me, however, later provided the incentive to develop alternative catalytic... 

Reaction with ettoUzabk ketones. Triphenylphosphine in carbon tetrachloride reacts with cyclohexanone under reflux to give (1) and (2) in the ratio of 93 7. Simitar... 

The acid and its salts, the phosphites, arc powerful reducing agents. Its reaction with silver ion is used as a test for phosphite ion a black precipitate is formed, which consists of silver phosphate, AgaPO, colored black by metallic silver formed by reduction of silver ion. Phosphite ion also reduces iodate ion to free iodine, which can be detected by the starch test (blue color) or by its coloration of a smaU volume of carbon tetrachloride shaken with the aqueous phase. ... 

Derivation Reaction of carbon tetrachloride vapor with carbon at 1300C and 1CT3 mm Hg. 

Reactions with 3-methylbutanal (82) (for ipsenol, 83) or senecio aldehyde (dimethylacrolein, 84, for ipsdienol, 85) were discussed previously (Vol. 4, p. 467). Many further publications on the subject have s peared. Isoprene can be tribrominated, first with bromine in carbon tetrachloride, then with N-bromosuccinimide. This is one route to 2-bromomethyl-l,3-butadiene (9, R = Br), obtained from the tribromide with zinc amalgam reduction, but in fact the tribromide reacted directly with the aldehydes 82 or 84 to give ipsenol (83) or ipsdienol (85). A reagent used for the reaction of 9 (R = Br) with the aldehydes... 

Chlorine is virtually absent in the copolymer produced in the azobisisobutyronitrile (AIBN) catalyzed copolymerization of styrene and maleic anhydride in the presence of chloroform or carbon tetrachloride (3, 4), or of p-dioxene and maleic anhydride in the presence of acrylonitrile in chloroform (5). This absence indicates that trichloromethyl radicals generated by the reaction of the chlorinated hydrocarbons with the radicals from AIBN are not incorporated into the polymer chain. Similarly, there is little or no cnlorine in the alternating copolymer that is formed in the copolymerization of styrene and methyl methacrylate in the presence of ethylaluminum sesquichloride (EASC) in the presence of chloroform and carbon tetrachloride, and with or without a peroxide initiator (6). 

Both Freon-11 and Freon-12 are made by the reaction of carbon tetrachloride (CCI4) with hydrogen fluoride. Write equations for these reactions. 

Cleavage of alkenylpentafluorosilicates by halogen or N-bromosuccinimide proceeds with retention of configuration, in contrast to the inversion observed under similar conditions in the reaction of alkenyltrimethylsilanes, in which the silicon is but tetracoor-dinate. Alkenyltrifluorosilanes react with inversion in carbon tetrachloride, and with retention in polar solvents135. Inversion is a consequence of the accepted trans-addition anti-elimination mechanism (Scheme 8), whereas retention is explained by direct electrophilic displacement of silicon by attack at the a-carbon atom (Scheme 9). 

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