Synthesis, UV–Vis spectra, and Hammett correlation of some novel bis(dihydropyrrolo[3,4-c]pyrazoles)
作者:Yaşar Dürüst、Muhammet Yıldırım
DOI:10.1007/s00706-010-0351-z
日期:2010.9
AbstractTwenty-nine novel bis(dihydropyrrolo[3,4-c]pyrazole) derivatives were obtained by reacting C,N-phenyl-substituted nitrilimines generated in situ from corresponding hydrazonyl chlorides with bismaleimides. The structures were elucidated by physical and spectroscopic methods [m.p., R f, infrared (IR), 1H nuclear magnetic resonance (NMR), 13C NMR, correlation spectroscopy (COSY), heteronuclear
摘要通过使由相应的酰肼基氯化物就地生成的C,N-苯基取代的腈亚胺与双马来酰亚胺反应,获得了二十九种新型的双(二氢吡咯并[3,4- c ]吡唑)衍生物。通过物理和光谱方法[mp,R f,红外(IR),1 H核磁共振(NMR),13 C NMR,相关光谱(COSY),异核相关(HETCOR),核Overhauser效应(NOE)阐明了结构)和高分辨率质谱(HRMS)]。此外,哈米特常数之间获得哈米特相关图表σ p和λ 最大的双(pyrrolopyrazoles)值携带p取代的带苯基环的吸电子和供电子基团,并根据取代基效应进行讨论。 图形概要 。