Heterocyclized Carbometalation of Alkynes: Unexpected Formation of Eight-Membered Oxazirconacycles with an Intramolecularly Coordinated Isoquinoline Moiety
摘要:
The isoquinolyl-zirconation of various unactivated alkynes was investigated by a one-pot, three-component reaction of two different alkynes with a nitrile in the presence of 1 equiv of CuCl. The true nature of the resulting products of novel eight-membered oxazirconacycles containing an intramolecular Zr-N coordination was established using X-ray crystallography.