Synthesis of functionalized hydroxyphthalides and their conversion to 3-cyano-1(3H)-isobenzofuranones. The Diels-Alder reaction of methyl 4,4-diethoxybutynoate and cyclohexadienes
Synthesis of functionalized hydroxyphthalides and their conversion to 3-cyano-1(3H)-isobenzofuranones. The Diels-Alder reaction of methyl 4,4-diethoxybutynoate and cyclohexadienes