Stereoselective synthesis of new spiro-fused heterocyclic systems, 2, 3, 4, 4a, 5.6-hexahydro-6H-spiro [benzo [c] quinolizine-5, 4′-pyrazol]-5′-ones

TV Glukhareva, PE Kropotina, MF Kosterina…

Index: Glukhareva; Kropotina; Kosterina; Nein; Deeva; Morzherin Chemistry of Heterocyclic Compounds, 2007 , vol. 43, # 1 p. 76 - 81

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Citation Number: 4

Abstract

Chemistry of Heterocyclic Compounds, Vol. 43, No. 1, 2007 ... SPIRO[BENZO[c]QUINOLIZINE -5,4'-PYRAZOL]-5'-ONES ... TV Glukhareva, PE Kropotina, MF Kosterina, Yu. I. Nein, ... The synthesis of 2,3,4,4a,5,6-hexahydro-6H-spiro[benzo[c]quinolizine-5,4'-pyrazol]-5'-ones has been achieved by the reaction of 2-piperidinobenzaldehydes with 2-aryl-5-methyl-2,4-dihydropyrazol -3-one via the "tert-amino effect" mechanism. ... Keywords: pyrazol-3-one, ...