Inter- or Intramolecular Carbometalation of Nonactivated Alkynes by Zirconacyclopentanes in the Presence of Copper Chloride
摘要:
Five- and six-membered carbocyles 2 and 3 can be obtained from zirconacyclopentanes of type 1 by a novel carbometalation with nonactivated alkynes in the presence of CuCl (see reaction scheme).