作者:Malek Nechab、Damien Campolo、Julien Maury、Patricia Perfetti、Nicolas Vanthuyne、Didier Siri、Michèle P. Bertrand
DOI:10.1021/ja106668d
日期:2010.10.27
The cascade rearrangement of chiral enediynes 1c-e, involving successively 1,3-proton shift, Saito-Myers cyclization, 1,5-hydrogen atom transfer, and intramolecular coupling of the resulting biradical, proceeded at 80 degrees C to form tri- and tetracyclic heterocycles possessing a quaternary stereogenic center with a very high level of memory of chirality.