直接反应

Objective To compare the effects of small-dose sufentanil and fentanyl on cardiovascular responses to laryngoscopic orotracheal intubation in children.

目比较小剂量舒芬太尼和枸橼酸芬太尼预防儿童直接喉镜经口气管插管心血管反应。

In order to get polyaryloxyphosphazene, polyphosphazene's side chlorines are directly substituted by aryloxy of phenol using triethylamine as the bind acid agent.

然后以三乙胺为缚酸剂，使高聚氯化腈直接与酚类化物进行取代反应，标题高聚物。

Bromoxynil octanoate was synthesized from bromoxynil,octanoic acid and thionyl chloride in the solvent using DMF and N(C 2H 5) 3 as catalysts by one step reaction.

以DMF、三乙胺为催化剂,在溶剂中,用辛酸直接溴苯腈辛酸酯,实现由酸酯一步反应。