目的: 合成新的双-胡椒醛缩二胺类席夫碱化合物.Methods: Five Schiff bases were prepared from piperonal and diamines by condensation reaction.用胡椒醛为起始原料,经氯化 、 水解、缩合,制得血凝酸胺.After the process of chlorination, hydrolytic decomposition and condensat...
There is a credibility gap developing between employers and employees.雇主和雇员之间出现了信任危机。The implication that marital infidelity enhances a leader's credibility is preposterous.婚姻不忠会提升领导人可信度的暗示荒谬之极。The president will ha...