Routes to 3aH-indenes. Deprotonation and methylation of some indenones bearing ring junction substituents
作者:Thomas L. Gilchrist、Charles W. Rees、David Tuddenham
DOI:10.1039/p19810003221
日期:——
and (3) have been converted into the corresponding enolate anions by reaction with potassium hydride below –10 °C. Methyl fluorosulphonate was added to each solution: with the trienones (1) and (3), transient 3aH-indenes (4a) and (14) were detected and were intercepted by reaction with 4-phenyl-triazolinedione. The tetraenol ether (4a) was also intercepted by N-phenylmaleimide. In all cases the products