Self-assembled complexes of non-cross-linked amphiphilic polymeric ligands with inorganic species: highly active and reusable solid-phase polymeric catalysts.
I present herein the development of highly active and reusable polymeric catalysts produced by self-assembly process of non-cross-linked amphiphilic polymeric ligands with inorganic species. Thus, PWAA 1 prepared from H3PW12O40 and poly[(N-isopropylacrylamide)-co-(acrylamide with ammonium salt)] is suitable for oxidation of alcohols, amines, and sulfides in aqueous hydrogen peroxide. PdAS 2 produced by self-organization of (NH4)2PdCl4 and poly[(N-isopropylacrylamide)10-co-diphenylphosphinostyrene] is an excellent recyclable catalyst for Suzuki-Miyaura reaction in water, water-organic solvent, and organic solvent. It is commercially available from Tokyo Kasei Kogyo (TCI). PdAS-V 3 assembled from (NH4)2PdCl4 and poly[(N-isopropylacrylamide)5-co-diphenylphosphinostyrene] provides recycling system of itself for Mizorogi-Heck reaction. TiSS 4 made from Ti(O-i-Pr)4 and poly(styryl-linked binaphtholate-co-styrene) promotes an enantioselective carbonyl-ene reaction as a recyclable catalyst.
Institute for Molecular Science, Okazaki, Aichi, Japan. yyamada@ims.ac.jp
Yoichi M A
YM
Yamada
D000588:Amines / Q000737:chemistry; D002384:Catalysis; D007287:Inorganic Chemicals / Q000737:chemistry*; D008024:Ligands; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D011108:Polymers / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry
D000588:Amines; D007287:Inorganic Chemicals; D008024:Ligands; D011108:Polymers; D013440:Sulfides