Abstract
The reaction with chloral of 2-[1-(3-chlorophenyl)-2,2,2-trifluoroethoxy]-5,6-benzo-1,3,2-dioxaphosphorinan-4-one containing a chiral fluorinated exocyclic substituent on phosphorus leads to formation of 2-[1-(3-chlorophenyl)-2,2,2-trifluoroethoxy]-3-(trichloromethyl)-6,7-benzo-1,4,2λ5-dioxaphosphepin-5-one 2-oxide with a high regio- and stereoselectivity. The molecular and supramolecular structure of the isolated diastereomer was established by means of X-ray diffraction.
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