Ruthenium-carbene catalysts for the synthesis of 2,3-dimethylfuran

CETINKAYA B., Ozdemir I., BRUNEAU C., DIXNEUF P.

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, cilt.118, sa.1, 1997 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Kısa Makale
  • Cilt numarası: 118 Sayı: 1
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1016/s1381-1169(96)00239-7
  • Dergi Adı: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: ruthenium-carbene catalysts, activation of Z-enynols, catalytic synthesis of 2,3-dimethylfuran, TERMINAL ALKYNES, ALLYL ALCOHOLS, RECONSTITUTIVE CONDENSATION, HOMOGENEOUS CATALYSIS, ORGANIC-SYNTHESIS, CARBON-DIOXIDE, ENOL ESTERS, COMPLEXES, ACETYLENES, ALKENES
  • İnönü Üniversitesi Adresli: Evet

Özet

A variety of neutral arene-ruthenium-carbenes of type (arene)RuCl2(=C(NR)CH(2)CH(2)NR) have been used for the catalytic transformation of (Z)-3-methylpent-2-en-4-yn-l-ol into 2,3-dimethylfuran. The catalytic reaction takes place at 80 degrees C with mononuclear complexes III-V to afford the furan in similar to 90% yield. The binuclear catalysts VIa and VIIa having a linked bis-carbene bridge operate at room temperature to initiate an exothermic reaction offering 90-97% of furan.