Microwave-assisted intramolecular palladium-mediated cyclizations of <i>o</i>-iodobenzophenones for methoxy fluoren-9-ones

Microwave (MW) irradiation is an effective tool in organic reactions that required long reaction times under thermal conditions. Herein substituted 2-iodobenzophenones were transformed into fluoren-9-ones via cesium carbonate and bis(triphenylphosphine) palladium(II) chloride with 56–92% yields within 30–45 min microwave irradiations. A remarkable decrease the time high yield products was observed. The isolated have been emphasize on basis of (1H/13CNMR) correlations spectra.