One-Pot Synthesis of Phenacyl Esters from Acetophenone, [Bmim]Br<sub>3</sub>, and Potassium Salts of Carboxylic Acids Under Solvent-Free Conditions
作者:Zhang-Gao Le、Zong-Bo Xie、Jian-Ping Xu
DOI:10.1080/00397910802431115
日期:2009.1.28
Abstract One-pot synthesis of phenacyl esters from acetophenone, [Bmim]Br3, and potassium salts of carboxylic acids under solvent-free conditions gave the corresponding phenacyl esters with excellent yields.
The invention relates to new flavone derivaties which have at least one N-disubstituted carbamoyloxy unit (OOCNR6(R7))coupled directly to one or both aromatic rings of the flavone molecule.
First hand: The first example of a palladium-catalyzed asymmetric hydrogenation of α-acyloxy ketones (1) was accomplished to give the hydrogenated products 2 with by far the highest catalytic efficiency in up to quantitative conversions and excellent enantioselectivities. The hydrogenated products could serve as important intermediates for the preparation of many drug candidates. TFE=2,2,2-trifluoroethanol.
Srinivasan, Chockalingam; Shunmugasundaram, Arunachalam; Arumugam, Natesan, Journal of the Chemical Society. Perkin transactions II, 1984, # 2, p. 213 - 216
Srinivasan, C.; Shunmugasundaram, A.; Roja, M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1984, vol. 23, # 6, p. 555 - 557
作者:Srinivasan, C.、Shunmugasundaram, A.、Roja, M.、Arumugam, N.