127245-71-0Relevant articles and documents
Photocyclization Reactions. Part 2. Synthesis of Dihydrobenzofuranols Using Photocyclization of Ethyl 2-Formylphenoxyacetates and Ethyl 2-Acetylphenoxyacetates
Horaguchi, Takaaki,Tsukada, Chikara,Hasegawa, Eietsu,Shimizu, Takahachi,Suzuki, Tsuneo,Tanemura, Kiyoshi
, p. 1273 - 1280 (2007/10/02)
Photocyclization reactions were carried out on ethyl 2-formylphenoxyacetates 1a-e and ethyl 2-acetylphenoxyacetates 2a-e in acetonitrile.Irradiation of 1a-e gave dihydrobenzofuranols 3 in 20-46percent yields.Similarly, irradiation of 2a-e afforded dihydrobenzofuranols 6 and their derivatives 7, 8 in 40-86percent yields.Substitution effects on photocyclization and reaction pathways are discussed.
