Metal-catalyzed organic photoreactions. Photoreaction of 2-chloroacetophenone derivatives with olefins in the presence of silver trifluoromethanesulfonate
作者:Seung-Hun Oh、Kunio Tamura、Tadashi Sato
DOI:10.1016/s0040-4020(01)81185-6
日期:1992.1
UV-irradiation of 2-chloroacetophenones and olefins in the presence of silver triflate affords naphthalenone derivatives with high regio and stereoselectivity and chemical yields. A possible mechanism is proposed.
Tandem Acylation-Cycloalkylation: A Novel Synthesis of Phenanthrenes
作者:M. M. V. Ramana、Prashant V. Potnis
DOI:10.1055/s-1996-4337
日期:1996.9
Cyclohexene-1-acetic acid (1) undergoes reactions with various aromatic substrates 2a-k in the presence of polyphosphoric acid (PPA) to give 1,2,3,4,4a,10a-hexahydrophenanthren-9(10H)-ones 3a-k by tandem acylation-cycloalkylation, which on dehydrogenation with Pd-C afforded the corresponding phenanthrenes 4a-k in high yields.