Polysilsesquioxane (POSS)-linked imidazole-based carbene and phosphine ligands for transition metal catalysts

Cengiz Azap (Inventor), Dorit Wolf (Inventor), Hendrikus C.L. Abbenhuis (Inventor), Gijsbert Gerritsen (Inventor), Karol Grela (Inventor), Jos B.M. Wilting (Inventor), Kinga Leszczynska (Inventor), Justyna Czaban (Inventor), Anna Wojtasiewicz (Inventor)

Research output: PatentPatent publication

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Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L [(R 1a ) n-1 (SiO 1,5 ) n R 2a ] k [(R 1b ) n-1 SiO 1,5 ) n R 2b ] l [(R 1c ) n-1 SiO 1,5 ) n R 2c ] m (I) in which (R 1a,b,c ) n-1 (SiO 1,5 ) n is a polyhedral oligomeric silsesquioxanes (POSS) with n = 4, 6, 8,10, 12, 14, 16 or 18 and R 1a , R 1b ,R 1c is each independently selected from the group consisting of same or different branched or linear C 1 -C 20 alkyl chains, cyclo alkyl, C 1 -C 20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, I, m is 0 or 1 provided that k+l+m ¥ 1, R 2a , R 2b , R 2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.

Original languageEnglish
Patent numberEP2368894
IPCC07F 7/ 21 A I
Priority date1/03/10
Publication statusPublished - 28 Sep 2011


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