TY - JOUR T1 - Reversibility of .eta.4-cyclobutadiene metal formation from complexed alkynes: unimolecular isomerization of labeled racemic and enantiomerically enriched .eta.5-cyclopentadienyl-.eta.4-cyclobutadiene-cobalt complexes JO - Journal of the American Chemical Society UR - https://doi.org/10.1021/ja00407a067 PY - 2002/05/01 AU - Ville G AU - Vollhardt KPC AU - Winter MJ ED - DO - DOI: 10.1021/ja00407a067 PB - American Chemical Society (ACS) VL - 103 IS - 17 SP - 5267 EP - 5269 Y2 - 2025/06/08 ER -