705284-28-2

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• 705284-42-0 (3aS,6R,6aR)-1-Benzyl-6-phenyl-octahydro-cyclopenta[b]pyrrol-6-ol 
• 705284-41-9 (3aS,6aR)-1-Benzyl-hexahydro-cyclopenta[b]pyrrol-6-one 
• 705284-39-5 (3aS,6R,6aR)-1-Benzyl-octahydro-cyclopenta[b]pyrrol-6-ol 
• 591-51-5 phenyllithium 
• 7294-50-0 tri-o-tolylboroxine 
• 127001-72-3 (3aS,6R,6aR)-6-Phenyl-octahydro-cyclopenta[b]pyrrol-6-ol 

Relevant academic research and scientific papers

Simple, Catalytic Enantioselective Syntheses of Estrone and Desogestrel

Highly enantioselective and very short syntheses of the bioactive forms of estrone (3) and desogestrel (4) are described using a chiral oxazaborolidinium catalyst (2) in the key initial step. Enantiomerically pure estrone was synthesized in eight steps from the readily available starting materials diene 5 and α,β-enal 6 via intermediates 8 and 9. Desogestrel was synthesized using a similar strategy from diene 5 and α,β-enal 11 via intermediates 12-17. The efficient syntheses of the chiral catalyst 2 and its enantiomer are also presented. Copyright

Application of chiral cationic catalysts to several classical syntheses of racemic natural products transforms them into highly enantioselective pathways

This paper describes the application of chiral oxazaborolidinium cations of type 2 to various enantioselective Diels-Alder reactions that have served as early key steps for the syntheses of complex natural products. In the original syntheses these Diels-A