【摘要】 <正> 前文我们对十五个二氢和四氢苯骈二氮杂(艹卓)化合物进行了~1H NMR研究,并推定了在两类四氢苯骈二氮杂(艹卓)化合物中,高熔点物为顺式椅型构象,而低熔点物为反式扭船型构象。 本文应用质子宽带噪音去偶、门控去偶、偏共振技术、取代基化学位移加合规则、自旋更多还原

【Abstract】 The 13C NMR assignments of six tetrahydro-derivatives and three dihydro-derivatives of benzodiazopines have been made.With the aid of the techniques of wide-band proton decoupling, off-resonance decoupling, the substituent additivity rules, and the comparison of series of homologous compounds, the chemical shifts of various types of carbon in molecules have been determined.The results have been discussed in terms of the hybridization state of the observed nucleus, mesomeric and substituent effects.更多还原