| http://www.w3.org/ns/prov#value | - An important part of the present invention is a new efficient method of converting 3-TBSO-4-methoxyacetophenone (3) to ??-halo-3-TBSO-4-methoxyacetophenone (5) by treatment of the trimethylsilyl enol ether (4) [1-(3-TBSO-4-methoxyphenyl)-1-trimethylsiloxy(TMSO)-ethylene] with elemental halogen.
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