Silica-Supported Triptycene-Type Phosphine. Synthesis, Characterization, and Application to Pd-Catalyzed Suzuki–Miyaura Cross-Coupling of Chloroarenes

…, S Kawamorita, N Yokokawa, H Ohmiya…

Index: Kawamorita, Soichiro; Ohmiya, Hirohisa; Hara, Kenji; Fukuoka, Atsushi; Sawamura, Masaya Journal of the American Chemical Society, 2009 , vol. 131, p. 5058 - 5059

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Abstract

A silica-supported triptycene-type phosphine, Silica-TRIP, comprising a 9-phospha-10- silatriptycene (TRIP) and silica gel as a P-coordination center and a solid support, respectively, was synthesized and structurally characterized by nitrogen absorption measurements and solid-state CP/MAS NMR spectroscopy. Silica-TRIP exhibited a mono-P- ligating feature toward a Pd (II) complex, resulting in selective formation of a 1/1 Pd–P ...