A mild and convenient one-pot photochemical synthesis of chroman-4-one derivatives. The photo-Fries rearrangement of (hetero)aryl 3-methyl-2-butenoate esters under basic catalysis

作者：Samaniego Lopez Cecilia; Erra Balsells Rosa; Bonesi Sergio M^*

来源：Tetrahedron Letters, 2010, 51(33): 4387-4390.

DOI：10.1016/j.tetlet.2010.06.063

The biphasic base catalysis-mediated photo-Hies rearrangement reaction of aryl 3-methy-2-butenoate esters in room temperature cyclohexane-10% KOH system was investigated This mild photochemical reaction leads to the formation of chroman-4-one derivatives in good to high yield and in short reaction times (30-120 min) in a one-pot photochemical reaction A

• 出版日期2010-8-18