The study of the chemical properties of 1,2,4-oxadiazoles has permitted to conclude to the electropositive character of the two carbon atoms in this ring. A clear demonstration of this is the ease of nucleophilic attack and the non occurrence of electrophilic attack.
                                    对
1,2,4-恶二唑的
化学性质的研究已经可以得出该环中两个碳原子的正电特性。清楚的证明是亲核攻击的容易性和亲电攻击的不发生。