N-functionalized azolin-2-ylidene-palladium-catalyzed Heck reaction

Oezdemir I., Guerbuez N., Goek Y., Cetinkaya B.

HETEROATOM CHEMISTRY, cilt.19, sa.1, ss.82-86, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1002/hc.20415
  • Dergi Adı: HETEROATOM CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.82-86
  • İnönü Üniversitesi Adresli: Evet

Özet

Novel 1,3-dialkylimidazolidinium, 1,3-dialkyl-3,4,5,6-tetrahydropyrimidinium, and 1,3-dialkyl-1H-4,5,6,7-tetrahydrodiazepinium hexafluorophosphates (la-c, 2a-c) as N-heterocyclic carbene precursors have been synthesized and characterized. The incorporation of saturated N-heterocyclic carbenes into palladium precatalysts gives high-catalyst activity in the Heck coupling of aryl bromide substrates in aqueous media. The complexes were generated in the presence of Pd(OAC)(2) by in situ deprotonation of 1,3-dialkylazolinium salts 1, 2. (C) 2008 Wiley Periodicals, Inc.