Return to Article Details A NOVEL SPIROHETEROCYCLIZATION: SYNTHESIS OF 1-ETHOXYCARBONYLMETHYLIDENE-8-(2'-ETHOXYCARBONYLMETHYLIDENE-5',5'-DIMETHYL-3'-PYRROLIDINYLIDENE)-3,3,6-TRIMETHYL-2-AZASPIRO[4,5]DECA-6,9-DIENE Download Download PDF