(4S,8S)-4,8-Bis(diphenylmethyl)-1,5,7-triazabicyclodec-5-ene; a Hindered, Chiral, Bicyclic Guanidine Base with Effective C2-Symmetry

Article abstract of DOI:10.1039/c39940001875

The title compound 5 is prepared from L-methionine and investigated by computational, NMR spectroscopic and other techniques; the results indicate that the N/NH groups of 5 and its conjugate acid occupy hindered, chiral environments due to the disposition of the bulky diphenylmethyl substituents.