Asymmetric Hydroformylation of an Enantiomerically Pure Bicyclic Lactam: Efficient Synthesis of Functionalised Cyclopentylamines
作者:Gary M. Noonan、Christopher J. Cobley、Tomas Lebl、Matthew L. Clarke
DOI:10.1002/chem.201002233
日期:2010.11.15
Customising a bicycle: Rh‐catalysed asymmetrichydroformylation of a bicycliclactam, 2‐azabicyclo‐[2.2.1]hept‐5‐en‐3‐one, was investigated. The use of a chiral diphosphite ligand, (R,R)‐Kelliphite, enables excellent selectivity towards one regioisomer combined with excellent productivity and perfect exo selectivity. The products are versatile precursors to highly desired functionationalised cyclopentylamines
[EN] HIGHLY SELECTIVE ASYMMETRIC HYDROFORMYLATION OF (1S,4R) OR (1R,4S)-2-AZABICYCLO[2.2.1]HEPT-5-EN-3- ONE (+) OR (-)-LACTAM<br/>[FR] HYDROFORMYLATION ASYMÉTRIQUE EXTRÊMEMENT SÉLECTIVE DE LA (+) OU (-)-LACTAME (1S,4R)- OU (1R,4S)-2-AZABICYCLO[2.2.1]HEPT-5-ÉN-3-ONE