The single toxicity of cadmium(Cd) or 9 substituted phenols to Phtobacterium phosphoreum was determined, respectively. The results indicate that the single toxi
An efficient method is described for the synthesis of 2-substituted quinolino[7',8':5,6]pyrano[2,3-d] pyri-midin-4(3H)-ones(6) via a tandem aza-Wittig a