- Role of water traces in the liquid-phase catalytic hydrochlorination of olefins in organic solvents
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The liquid-phase hydrochlorination of 4,5,6,7,8,8,-hexachloro-3′,4,7,7′-tetrahydro-4,7-methanoindene (Chlordene) catalyzed by gallium or aluminum halides occurs in the presence of water traces in an aprotic organic solvent. Complexes H2O · M2X6, where M is metal and X is halogen, catalyze this reaction. The reaction proceeds under homogeneous conditions. Under heterogeneous catalytic conditions, the solid phase in the AlCl3-CCl4 system attains the required concentration of AlCl3 in the solution. It was shown using quantum-chemical PM3 calculations that the water molecule facilitates the transfer of proton in the form of the hydroxonium ion from an HCl molecule to olefin.
- Mal'kov,Romm,Abronin
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p. 243 - 246
(2007/11/27)
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