TANDEM CARBENE INSERTION SEMIPINACOL REARRANGEMENT OF 1-ALKYNYLCYCLOBUTENOLS - A FACILE SYNTHESIS OF 2-ALKENYL-4-CYCLOPENTENE-1,3-DIONES


ZORA M. , HERNDON J. W.

JOURNAL OF ORGANIC CHEMISTRY, cilt.59, ss.699-701, 1994 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 59 Konu: 4
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1021/jo00083a002
  • Dergi Adı: JOURNAL OF ORGANIC CHEMISTRY
  • Sayfa Sayıları: ss.699-701

Özet

Reaction of chromium carbene complexes and 1-alkynylcyclobutenols leads to 2-alkenyl-4-cyclopentene-1,3-diones. Initial allkyne insertion affords a highly electrophilic carbene complex, which then undergoes an alkyl shift-ring expansion, ultimately producing 2-alkenyl-4-cyclopentene-1,3-diones.