The tandem reaction of 3‐morpholinoacrylonitrile with sulfonyl hydrazides mediated by I₂/benzoyl peroxide (BPO) is reported, which offers an efficient approach for the synthesis of sulfonated 5‐aminopyrazoles. It can bear a large scope of the substrates, and be used for the synthesis of aromatic, heteroaromatic and aliphatic sulfonated 5‐aminopyrazoles.

中文翻译：

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I2 /苯甲酰过氧化物介导的串联反应合成磺化的5-氨基吡唑

据报道，由I ₂ /过氧化苯甲酰（BPO）介导的3-吗啉代丙烯腈与磺酰肼的串联反应，为合成磺化的5-氨基吡唑提供了一种有效的方法。它可以承受很大范围的底物，并用于合成芳族，杂芳族和脂族磺化5-氨基吡唑。