2,4,6-Tris(4-iodophenoxy)-1,3,5-triazine as a new recyclable “iodoarene” for in situ generation of hypervalent iodine(III) reagent for α-tosyloxylation of enolizable ketones
作者:Prerana B. Thorat、Bhagyashree Y. Bhong、Amol V. Shelke、Nandkishor N. Karade
DOI:10.1016/j.tetlet.2014.04.052
日期:2014.5
The synthesis of 2,4,6-tris[(4-iodo)phenoxy)]-1,3,5-triazine 6, as a new recyclable nonpolymeric analogue of iodobenzene is achieved using the reaction of 2,4,6-trichloro-1,3,5-triazine with 4-iodophenol in the presence of KOH. The application of 6 as a recyclable ‘iodoarene’ is demonstrated for α-tosyloxylation of enolizable ketones via in situ generation of hypervalent iodine(III) species using PTSA
2,4,6-三([4-碘)苯氧基)]-1,3,5-三嗪6(2,4,6-tris [(4-iodo)phenoxy)]-1,3,5-triazine 6的合成是通过2,4,6-三氯的反应实现的在KOH存在下,-1,3,5-三嗪与4-碘苯酚。通过使用PTSA和MCPBA作为末端氧化剂,通过原位生成高价碘(III)物种,证明了将6作为可循环使用的“碘芳烃”用于可烯化酮的α-甲苯磺酰氧基化。试剂6的再循环能力是可能的,这归因于其在甲醇中的几乎不溶性,因此可以从反应混合物中容易地回收和再利用。