Weak Ag⋯Ag and Ag⋯π interactions in templating regioselective single and double [2+2] reactions of N,N′-bis(3-(4-pyridyl)acryloyl)–hydrazine: synthesis of an unprecedented tricyclohexadecane ring system†
Abstract
Synthesis of a stereospecific four–twelve–four fused tricyclic compound containing a tetraamide