SEARCH Articles Figures Tables 2- oxazoline, metallation Crystal directions Crystal x-ray Crystallization and structure Crystals and crystal structures Direct crystallization Direct metalation Direct metallation Directional crystallization Electrophiles structure Electrophiles, metals Electrophilic metalation Electrophilic metallation Electrophilicity, and Metal crystals Metallation directed Metallic crystal Metallic crystal structures Structure direct Structure directing X crystal structure X-ray crystal structure X-ray crystallization