Palladium-Catalyzed Decarboxylation of Allenyl 3-Oxoalkanoates: An Efficient Synthesis of 3,4-Allenyl Ketones
摘要:
An efficient synthesis of 3,4-allenyl ketones via the Pd-catalyzed decarboxylative coupling of the readily available 3-oxoalkanoates is reported. The C-C bond forming reaction occurs under mild conditions producing CO2 as the only byproduct.
Synthesis of functionalised cyclopentanes by intramolecular radical-mediated cyclisations of terminal allenic ketones
作者:Gerald Pattenden、Graeme M. Robertson
DOI:10.1016/s0040-4020(01)97179-0
日期:1985.1
Electrolysis of a series of terminal allenic ketones e.g. (7), (10), (17) and (21) is shown to result in intramolecular reductive cyclisation, through the -mode, producing five-membered rings, (8), (9), (20) and (22) respectively, incorporating a bridgehead hydroxyl group. The unsaturated alcohols (8), (20) and (22), are also obtained when the allenic ketones (7), (17) and (21) are treated with sodium
Reductive cyclisation of allenic ketones. A new approach to functionalised five-membered rings.
作者:Gerald Pattenden、Graeme M. Robertson
DOI:10.1016/s0040-4039(00)85971-7
日期:1983.1
Electrolysis of a series of terminal allenic ketones, (4), (6), and (13) is shown to result in reductive cyclisation, through the -mode, producing five-membered rings, (5), (7), and (14) incorporating a bridgehead hydroxyl group.