Hypervalent iodine oxidation of phenol derivatives using a catalytic amount of 4-iodophenoxyacetic acid and Oxone® as a co-oxidant
作者:Takayuki Yakura、Masanori Omoto、Yû Yamauchi、Yuan Tian、Ayaka Ozono
DOI:10.1016/j.tet.2010.04.124
日期:2010.7
Reaction of p-substituted phenols 2 with a catalytic amount of 4-iodophenoxyacetic acid (1) and Oxone® as a co-oxidant in tetrahydrofuran (THF) or 1,4-dioxane–water gave the corresponding p-quinols 3 in excellent yields. Reaction of p-dialkoxyarenes 4 in 2,2,2-trifluoroethanol–water gave the corresponding p-quinones 5 in excellent yield without purification. These reactions provide efficient and practical
的反应p取代的酚2用4- iodophenoxyacetic酸(催化剂量1)过硫酸氢钾®如四氢呋喃(THF)的共氧化剂或1,4-二恶烷-水,得到相应的p -quinols 3以优良产率。的反应p -dialkoxyarenes 4在2,2,2-三氟乙醇-水,得到相应的p -quinones 5的优良率,无需纯化。这些反应为由对位取代的苯酚和对位苯甲酸制备对苯二酚和对苯醌提供了有效而实用的方法。-二烷氧基芳烃。该醌合成用于德国小att Blattella germanica的性信息素blattellaquinone(13)的合成。