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2005
Phenol ethers
Q 0270
An Efficient Catalyst System for Diaryl Ether Synthesis from Aryl Chloride. —
N-phenyl pyrroles and related indoles (I) are investigated in
34- 102 2-Phosphino-substituted
the Pd-catalyzed reaction of aryl and hetaryl chlorides with aromatic alcohols. Generally, best results are obtained with the derivative (Ia). In some cases, slightly higher
yields are observed with (Ic). Comparison with the "standard" Buchwald ligand
[cf. conditions C)] reveals the efficiency of the novel ligands. — (HARKAL, S.;
KUMAR, K.; MICHALIK, D.; ZAPF, A.; JACKSTELL, R.; RATABOUL, F.;
RIERMEIER, T.; MONSEES, A.; BELLER*, M.; Tetrahedron Lett. 46 (2005) 18,
3237-3240; Leibniz-Inst. Org. Katal., Univ. Rostock, D-18055 Rostock, Germany;
Eng.) — Mais
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