Synthesis of 2,3-dihydrobenzofuran-2-ones and 2,3-dihydrobenzothiophen-2- and 3-ones by rearrangements of 3-hydroxy analogs - Katritzky, Alan R.; Kirichenko, Kostyantyn; Hür, Deniz; Zhao, Xiaoming; Ji, Yu; Steel, Peter J. (ARKIVOC, 2004)
doi: 10.3998/ark.5550190.0005.605