Reactions with Halogen Compounds

OF2 dissolves only traces of O2F2 at 135 K. Two separate layers form on mixing OF2 and O2F2 at 135 K [1]. 

There was no noticeable reaction in equimolar mixtures of OF2 and anhydrous HCl at 25°C and 1 atm. Solid HCl does not react with liquid or gaseous OF2 between 90 and 140 K [2]. 

No reaction is observed between CI2O and OF2 at room temperature [11]. The compounds are slightly miscible at -78°C under pressure [13]. 

CIF mixes with equimolar amounts of OF2 homogeneously at 125 K without reaction [1]. On standing at 25°C or in UV light at -80°C, the mixture reacts to give CI2, CI2O, and unidentified products [3]. 

In a liquid solution of 16% CIF5 In OF2, hypergolicity of OF2 is enhanced while its vapor pressure is lowered. The solubility is complete between -78.5°C and the critical temperature of OF2 —58 C, see p. 41). Below -78.5°C miscibility is incomplete [6]. 

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On reaction with halogens, compound (3) affords bicyclic derivatives (4) having a transannular Au-Au bond (87). On treatment with CHjI, oxidative addition proceeds to give the product (6), which on methyla-tion yields (7) (71, 88). 

The e, q reacts with numerous organic compounds. Of particular interest to the field of waste treatment are the reactions with halogenated compounds. A... 

SAFETY PROFILE Moderately toxic by skin contact, inhalation, intravenous, and intraperitoneal routes. Mildly toxic by ingestion. Experimental teratogenic and reproductive effects. A skin and eye irritant. Less toxic than dimethylformamide. Mutation data reported. Combustible when exposed to heat and flame. A moderate explosion hazard. Violent reaction with halogenated compounds (e.g., carbon tetrachloride, hexachlorocyclohexane) when heated above 90°C. Iron powder catalyzes the reaction so that it initiates at 71 °C. 

Some examples of the lower reactivity of acetylenic Grignard reagents are the 1,2-addition reactions involving benzonitrile [29], and nucleophilic substitution reactions with halogen compounds that are limited to those highly reactive compounds, such as... 

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