SYNTHESIS OF SOME NEW SUBSTITUTED FLAVANONES AND RELATED 4-CHROMANONES BY A NOVEL SYNTHETIC METHOD
作者:Mihail Lucian Birsa
DOI:10.1081/scc-120001517
日期:2002.1.1
ABSTRACT A new heterocyclocondensation between substituted N,N,-dialkyldithiocarbamates and benzaldehyde aminals is described. The mild reaction condition, easily accessible reactants, offers a new useful synthesis of flavanones or 4-chromanones.
作者:Angela Sandulache、Alexandru Cascaval、Nicoletta Toniutti、Angelo G. Giumanini
DOI:10.1016/s0040-4020(97)00628-5
日期:1997.7
Twelve new flavones ((3) under bar) were prepared by the reaction of 2-hydroxy-alpha-bromoacetophenones ((1) under bar) with piperidine or morpholine animals of benzaldeydes ((2) under bar) in refluxing methanol. The products ((3) under bar) were fully characterised by H-1 NMR and IR spectroscopy and MS spectrometry. (C) 1997 Elsevier Science Ltd.