24388-71-4Relevant articles and documents
Oxidative cyclization of dialdehydes with alcohols and 1,3-dicarbonyl compounds under Rh(III)/Cu(II) conditions
Matsuda, Takanori,Suzuki, Kentaro,Abe, Shinya,Kirikae, Haruki,Okada, Noboru
, p. 9264 - 9270 (2015)
For the preparation of 3-alkoxyphthalides from phthalaldehydes and alcohols, a cyclization reaction in the presence of a rhodium(III) catalyst and copper(II) salt is reported. Cyclization of phthalaldehydes also occurs with 1,3-dicarbonyl compounds under similar conditions to produce 3-substituted phthalides in good yields. An acylrhodium(III) species might be a key intermediate in these cyclization reactions.