1002353-89-0Relevant articles and documents
Ring Opening of Cyclopropylketones Induced by Photochemical Electron Transfer
Cossy, Janine,Furet, Nathalie,BouzBouz, Samir
, p. 11751 - 11764 (1995)
Depending on the substitution pattern of cyclopropylketones, the photochemically induced electron transfer of tertiary amines to cyclopropylketones leads either to the formation of 3-substituted cycloalkanones or to ring expanded products.
Gold-Catalyzed Cyclizations of Alkynyl Silyl Enol Ethers: An Easy Access to Bicyclo[3.2.1]octanone Derivatives
Carr?r, Amandine,Péan, Christophe,Perron-Sierra, Fran?oise,Mirguet, Olivier,Michelet, Véronique
, p. 1540 - 1545 (2016)
The efficient gold-catalyzed cyclization reactions of alkynyl silyl enol ethers were successfully applied to the preparation of bicyclo[3.2.1]octanone derivatives. Accordingly, after optimization of the gold catalytic system, several bicyclic α,β-unsaturated keto adducts were synthesized in good to excellent yields. The process followed a major 5-exo cyclization via an anti addition of the silyl enol ether to the π-activated intermediate, which was demonstrated by a deuterium incorporation experiment. A 6-endo cyclization process was observed for a silyl enol ether bearing an electron-donating aromatic group.
Mo(CO)- And [Rh(CO)Cl] catalyzed allenic cyclocarbonylation reactions of alkynones: Efficient access to bicyclic dienediones
Brummond, Kay M.,Chen, Daitao
supporting information; experimental part, p. 705 - 708 (2009/04/07)
Allenyl alkynones are efficiently transformed into fused bicyclic dienediones via cyclocarbonylation reaction conditions. Mo(CO)6/DMSO reaction conditions result in the formation of a bicyclo[3.3.0]octenone ring system, and the [Rh(CO)2/s
