A new pathway for the preparation of diaryl acetylenes

• Published in: Tetrahedron letters Vol. 44; no. 20; pp. 3911 - 3913
• Main Authors: Abele, Edgars, Abele, Ramona, Arsenyan, Pavel, Lukevics, Edmunds
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 12.05.2003; Elsevier
• Subjects: acetylene; aryl bromides; Chemistry; Chemistry, Organic; palladium catalysis; phase transfer catalysis; Physical Sciences; Science & Technology; palladium catalysis; phase transfer catalysis; aryl bromides; acetylene; PALLADIUM

A simple method for the preparation of diaryl acetylenes in yields up to 61% from aryl bromides and 1-bromo-2-chloroethane using the palladium catalyst (dppb)Pd(OAc) 2 under PTC conditions (solid KOH/18-crown-6) has been developed. Graphic