with ω-acetophenonesulfonyl chloride (II, R = C6H5). In agreement with the general pattern of the distribution of electron density in the pyrazole nucleus, this work confirms that the position 4 of ring is the favoured site of electrophilic attacks.
                                    通过
氨基
吡唑IV和VII与ω-
苯乙酮磺酰氯(II,R = C 6 H 5)反应获得标题化合物。与
吡唑核中电子密度分布的一般模式一致,这项工作证实环的位置4是亲电攻击的首选位点。