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2005
Fused pyridine derivatives
R 0450
Synthesis of Some New Indolizines. — Indolizines bearing a dimethylamino substitat the 7-position are synthesized. Ylides (IV), generated by treatment of the readily
27- 147 uent
obtained salts (III) with sodium hydroxide, are isolated as stable, colored, crystalline
solids. Dipolar cycloaddition of ylides (IV) with DMAD affords the indolizines (VI) in
moderate yields. Attempts to improve the yield are unsuccessful. — (SARKUNAM,
K.; NALLU*, M.; J. Heterocycl. Chem. 42 (2005) 1, 5-11; Dep. Chem., Bharathidasan Univ., Tiruchirapalli 620 024, Tamil Nadu, India; Eng.) — H. Hoennerscheid
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