3-Acetyl-2,3-dihydrobenzothiazoles 11-20 have been prepared by the ring contraction of 2,4-diaryl-2,3-dihydro-1,5-benzothiazepines 1-10 under acetylating conditions. Compounds 11,15-24 have been oxidized with isolated dimethyldioxirane (in acetone solution) at ambient temperature to afford 3-acetyl-2,3-dihydrobenzothiazole 1,1-dioxides 25-35 as sole isolable products.
|Number of pages||9|
|Publication status||Published - Dec 1 2003|
- Ring contraction
ASJC Scopus subject areas
- Organic Chemistry