Jérôme Vachon, Samuel Rentsch, Alexandre Martinez, Claire Marsol and Jérôme Lacour
Org. Biomol. Chem., 2007,5, 501-506
DOI:
10.1039/B615797A,
Paper
Diastereomeric doubly bridged biphenyl azepines, atropos at 20 °C and tropos at 80 °C, are precursors to effective iminium organocatalysts that are employed in the enantioselective epoxidation of prochiral