Stereoselective synthesis of spirocyclic cyclopentapyrans by the Pauson-Khand reaction on camphor tethered enynes

Sezer S., Gumrukcu Y., ŞAHİN E., TANYELİ C.

TETRAHEDRON-ASYMMETRY, cilt.19, sa.23, ss.2705-2710, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 23
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.tetasy.2008.11.020
  • Dergi Adı: TETRAHEDRON-ASYMMETRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2705-2710
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

An intramolecular Pauson-Khand reaction of camphor tethered enynes derived from homoallyl, homomethallyl and homopropargyl alcohols is described. Homoallyl, homomethallyl, and homopropargyl moieties are easily constructed on the camphor carbonyl group with excellent diastereoselectivity due to endo-face selectivity, and with known stereochemistry. Each enantiomerically pure enyne affords the conformationally most stable diastereomeric spirocyclic cyclopenta[c]pyran ring system. (C) 2008 Elsevier Ltd. All rights reserved.