The synthesis of methyl 2??(benzyloxycarbonyl) amino??3??dimethylaminopropenoate. The synthesis of trisubstituted pyrroles, 3??amino??2H??pyran??2??ones, fused 2H?? …

R Toplak, J Svete, B Stanovnik…

Index: Toplak, Renata; Svete, Jurij; Stanovnik, Branko; Golic Grdadolnik, Simona Journal of Heterocyclic Chemistry, 1999 , vol. 36, # 1 p. 225 - 235

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Citation Number: 40

Abstract

Abstract Methyl 2-(benzyloxycarbonyl) aimno-3-dimemylaminopropenoate (2) was prepared from methyl N-(benzyloxycarbonyl) glycinate (1) and t-butoxybis (dimethylamino) methane, and used as a reagent for preparation of substituted 3-(benzyloxycarbonyl) amino-4H- quinolizin-4-ones 5 and 6,− 2H-pyran-2-ones 17–19,− 2H-1-benzopyran-2-ones 28–31, and- naphthopyrans 32–35,− 2H-pyrano [3, 2-c] pyridine-2, 5-dione 46,-pyrano-[4, 3-b] pyran-2, ...