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2,4,6-Tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine as a New Recyclable Hypervalent Iodine(III) Reagent for Chlorination and Oxidation Reactions
Synlett ( IF 1.7 ) Pub Date : 2013-08-14 , DOI: 10.1055/s-0033-1339495
Nandkishor Karade , Prerana Thorat , Bhagyashree Bhong

The synthesis of 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine, as a new recyclable nonpolymeric analogue of (dichloroiodo)benzene, is achieved in two steps using 2,4,6-trichloro-1,3,5-triazine and 4-iodophenol. The application of 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine for the chlorination reaction of various activated arenes, olefin, and 1,3-diketone is demonstrated. The reagent 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine can be applied also for the oxidative synthesis of 1,3,4-oxadiazoles and 1,2,4-thiadiazoles under mild conditions in excellent yields. The recyclability of the 2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine was possible owing to the facile recovery and reuse of the coproduced 2,4,6-tris(4-iodophenoxy)-1,3,5-triazine from the reaction mixture due to its practical insolubility in methanol.

中文翻译:

2,4,6-Tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine 作为一种用于氯化和氧化反应的新型可回收高价碘 (III) 试剂

2,4,6-三[(4-二氯碘)苯氧基)]-1,3,5-三嗪作为(二氯碘)苯的一种新型可回收非聚合类似物的合成分两步完成,使用2,4, 6-三氯-1,3,5-三嗪和4-碘苯酚。2,4,6-tris[(4-dichloroiodo)phenoxy)]-1,3,5-triazine 在各种活化芳烃、烯烃和 1,3-二酮的氯化反应中的应用得到了证明。试剂2,4,6-三[(4-二氯碘)苯氧基)]-1,3,5-三嗪也可用于1,3,4-恶二唑和1,2,4-噻二唑的氧化合成在温和的条件下以优异的产量。由于联产的 2,4,6-三(4-二氯碘)苯氧基)]-1,3,5-三嗪易于回收和再利用,2,4,6-三[(4-二氯碘)苯氧基)]-1,3,5-三嗪的可回收性是可能的。碘苯氧基)-1,3,5-三嗪从反应混合物中分离出来,因为它实际上不溶于甲醇。
更新日期:2013-08-14
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