1.
Molecules
; 10(1): 217-25, 2005 Jan 31.
Article
in English
| MEDLINE
| ID: mdl-18007289
ABSTRACT
The conversion of alpha-benzocycloalkenones to homologous beta-benzocyclo-alkenones containing six, seven and eight-membered rings is reported. This was accomplished via a Wittig olefination-oxidative rearrangement sequence using[hydroxy(tosyloxy)iodo]-benzene (HTIB) is the oxidant, that enables the synthesis of regioisomeric pairs of methyl-substituted beta-benzocycloalkenones. The incorporation of carbon-13 at C-1 of the beta-tetralone nucleus was also demonstrated. The Wittig-HTIB approach is a useful alternative to analogous sequences in which Tl(NO3)3.3H2O or the Prevost combination (AgNO3/I2) are employed in the oxidation step.