Cooperative Use of VCD and XRD for the Determination of Tetrahydrobenzoisoquinolines Absolute Configuration: A Reliable Proof of Memory of Chirality and Retention of Configuration in Enediyne Rearrangements
作者:Shovan Mondal、Jean-Valère Naubron、Damien Campolo、Michel Giorgi、Michéle P. Bertrand、Malek Nechab
DOI:10.1002/chir.22221
日期:2013.12
absolute configurations (AC) of azaheterocylic compounds resulting from the cascade rearrangement of enediynes involving only light atoms were unambiguously assigned by the joint use of vibrational circular dichroism (VCD) and copper radiation single crystal X‐ray diffraction (XRD). These AC determinations proved that the rearrangements of enediynes proceeded with memory of chirality and retention of configuration
One-pot Crabbé homologation-radical cascade cyclisation with memory of chirality
作者:Shovan Mondal、Malek Nechab、Nicolas Vanthuyne、Michèle P. Bertrand
DOI:10.1039/c2cc17830c
日期:——
The tandem Crabbé homologation-radical rearrangement of terminal enediynes leads, in a one-pot procedure, to the enantioselective synthesis of six- and seven-membered ring α-aminoesters bearing a quaternary stereocenter based on the phenomenon of memory of chirality.