... aromatic ring adjacent to a heteroatom-containing functional group by providing the lithium base with a point of coordination, Metalated Heterocycles in Synthetic Organic Chemistry thus increasing... structure intact These lithiated heterocycles, specially derived from aziridines and oxiranes, are nowadays finding more applications in synthetic organic chemistry, being able to introduce the azirinidyl... prepared using the Stille coupling, so the chromium Metalated Heterocycles in Synthetic Organic Chemistry complex 375 (obtained by coupling complex 373 and stannylated bromothiophene 374), an intermediate