Synthesis of Medium-Sized Carbocycles by Gallium-Catalyzed Tandem Carbonyl-Olefin Metathesis/Transfer Hydrogenation
The first examples of a catalytic tandem process involving a ring-closing carbonyl-olefin metathesis and a transfer hydrogenation are described. 1,4-Cyclohexadiene has been used as an H2 surrogate to reduce the cyclic alkenes formed after the m
Synthesis of new chiral bis(triarylphosphine) ligands based on asymmetric hydrogenation of 4,5-diaryl-2-oxocyclopentanecarb oxylates
New chiral bis(triarylphosphine) ligands, trans-bis(3-diphenylphosphinophenyl)cyclopentane and trans-bis(2-diphenylphosphinophenyl)cyclopentane, have been prepared in optically pure forms based on asymmetric hydrogenation of 4,5-diaryl-2-oxocyclopentaneca
Intramolecular Reactions of 1,5-Diaryl-1,5-pentadiyl Radicals
Photochemical decomposition of 2,6-diarylcyclohexanones 1a-d yields 1,2-diarylcyclopentanes 4 and 1,5-diaryl-1-pentenes 5 by intramolecular reaction of the intermediate 1,5-diaryl-1,5-pentadiyls 3.The two stereoisomers cis-4 and trans-4 are formed in equa
Peyman, Anuschirwan,Beckhaus, Hans-Dieter,Ruechardt, Christoph
p. 1027 - 1032
(2007/10/02)
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