Intramolecular Diels-Alder reactions of the retinoid side chain
作者:Y. Fulmer Shealy、James M. Riordan、Jerry L. Frye、Sheila R. Campbell
DOI:10.1016/0040-4020(95)00898-5
日期:1996.1
Retinyl propynyl ether (RPE) undergoes an intramolecularDiels-Alderreaction to form a tetrahydroisobenzofuran derivative by addition of the alkyne group at positions 11 and 14 of the retinoid sidechain. The Diels-Alder product can be isolated after RPE has been heated in refluxing ethanol. The Diels-Alderreaction also occurs very slowly in the solid state at low temperatures. The tetrahydroisobenzofuran