Surojit Sur, Sambasivam Ganesh, Vedavati G. Puranik and Amitabha Sarkar
Stereoselective annulations on Cr(CO)3 complexed tetralone and benzosuberone§ derivatives have been achieved. Diastereomeric products are shown to be related by an epimerisable chiral centre. An unusually facile de-ethoxycarbonylation has been observed.