SHUKLA, J. S.;AGARWAL, KANCHAN;RASTOGI, RENU, J. INDIAN CHEM. SOC., 1982, 59, N 6, 779-780
作者:SHUKLA, J. S.、AGARWAL, KANCHAN、RASTOGI, RENU
DOI:——
日期:——
Intramolecular Cyclization with Nitrenium Ions Generated by Treatment of <i>N</i>-Acylaminophthalimides with Hypervalent Iodine Compounds: Formation of Lactams and Spiro-Fused Lactams
N-Phthalimido-N-acylnitrenium ions are generated from N-acylaminophthalimides, a new class of precursors, by treatment with hypervalent iodine compounds (PIFA and HTIB). In HFIP, the nitrenium ions undergo intramolecular electrophilicsubstitution reactions to afford N-aminonitrogen heterocycles in high yields. In TFEA, spirodienones bearing the 1-azaspiro[4.5]decane skeleton are obtained by treatment