Palladium-Catalyzed Direct Arylation of 4-Chromanones: Selective Synthesis of Racemic Isoflavanones and 3,3-Diaryl-4-chromanones
作者:Fabio Bellina、Tiziana Masini、Renzo Rossi
DOI:10.1002/ejoc.200901356
日期:2010.3
yields and with high selectivity by Pd-catalyzed direct C-3 arylation of 3-unsubstituted 4-chromanones with aryl bromides with the aid of a Pd 2 (dba) 3 /tBu 3 PHBF 4 catalyst system in the presence of KHCO 3 as the base in a dioxane/water mixture (4:1). This catalyst system has also been employed in an unprecedented synthesis of 3,3-diaryl-4-chromanones through directarylation of 4-chromanones in
Donnelly, Dervilla M.X.; Finet, Jean-Pierre; Stenson, Paul H., Heterocycles, 1989, vol. 28, # 1, p. 15 - 18
作者:Donnelly, Dervilla M.X.、Finet, Jean-Pierre、Stenson, Paul H.
DOI:——
日期:——
Development of a new class of aromatase inhibitors: Design, synthesis and inhibitory activity of 3-phenylchroman-4-one (isoflavanone) derivatives
作者:Kevin Bonfield、Erica Amato、Tony Bankemper、Hannah Agard、Jeffrey Steller、James M. Keeler、David Roy、Adam McCallum、Stefan Paula、Lili Ma
DOI:10.1016/j.bmc.2012.02.042
日期:2012.4
catalyzes the aromatization reaction of androgen substrates to estrogens, the last and rate-limiting step in estrogen biosynthesis. Inhibition of aromatase is a new and promising approach to treat hormone-dependent breast cancer. We present here the design and development of isoflavanone derivatives as potential aromatase inhibitors. Structural modifications were performed on the A and Brings of isoflavanones