摘要 |
<p>Diaryl-anellated bicyclo[2.2.n] compounds (I) containing phosphorus, arsenic and/or antimony are new. Diaryl-anellated bicyclo[2.2.n] compounds of formula (I), containing phosphorus, arsenic and antimony, are new: [Image] A 1>, A 2>boron (B), nitrogen (N), phosphorus (P) or CR 5>; R 5>hydrogen (H), (cyclo)alkyl or (het)aryl; X : oxygen (O), sulfur (S), NRa or a divalent bridging group; Ra : H, (cyclo)alkyl or aryl; Y 1>, Y 2>groups containing P, arsenic (As) and/or antimony (Sb) atom(s), attached to the phenyl ring directly or by an O atom; R 1>, R 2>, R 3>, R 4>H, (cyclo)alkyl, aryl, alkoxy, halogen, NE 1>E 2>, alkylene-NE 1>E 2>, trifluoromethyl (CF 3), nitro (NO 2), alkoxycarbonyl or cyano (CN); E 1>, E 2>(cyclo)alkyl or aryl. Independent claims are also included for: (a) new catalysts comprising complex(es) of a sub-group VIII metal and ligand(s) (I); (b) preparation of compounds (I).</p> |