| 摘要 |
Compounds with a 5-membered unsaturated heterocycle attached by an optionally substituted aminomethyl or phosphinomethyl group to a benzene ring substituted in the o-position with a hydroxy, thiol, amino, alkoxy or alkylthio group. Compounds of formulae (Ia) or (Ib) are new. E1 = O, S, Se, Te, NR, CR2 or PR; E2, E3 = CR, N or P; E4 = N or P; E5 = OH, SH, NHR, OR, SR or NRR; E6 = NH, PH, NR or PR, and at least one of the groups E5 or E6 contains a hydrogen atom; R5, R6 = H, alkyl (linear, branched or cyclic) or aryl; R1-R4 = H, alkyl, aryl, halogen or nitro; R, R = H or alkyl; E2, E3 = O, S, Se, Te, NR, CR2 or PR Independent claims are included for: (1) a method for the production of (Ia) and (Ib) by reacting an aromatic aldehyde with a 5-membered heterocyclic compound substituted with the group -E6H2, followed by reduction of the -CH=E6- group; (2) metal complexes of formula LxMRYz (V); (3) a method for the production of (V) by deprotonation of (Ia) or (Ib) with a base followed by reaction with a metal compound, or by direct reaction of (Ia) or (Ib) with a metal compound; (4) catalytically-active compositions (CAC) comprising: (A) a complex (V) as above; and (B) a component selected from (B1) an organometallic compound, (B2) an organoaluminum-oxy compound and/or (B3) a compound which reacts with complex (A) to form an ion pair; (5) a method for the production of CAC by contacting (A) with (B); and optionally a support material; (6) a method for the (co)polymerization of olefins in presence of CAC as above polymers and copolymers obtained by this method. L = mono- (a) or di-anionic ligand (b) derived from (Ia) or (Ib); E5 = O-, S- or RN- (preferably O-) with E6 = N- or P- (preferably N-) if L is (b), or O-, S- or RN- (preferably O-) with E6 = NR or PR, or OR, SR or NRR' with E6 = N- or P- (preferably N-) if L is (a); M = Ti, Zr, Hf, V, Nb, Ta, Cr, Mo or W (preferably Ti, Zr or Hf) if L is (b), or the above metals plus Ni, Pd, Co, Fe, Cu, Ru or Rh (preferably Ti, Zr, Hf, Ni or Pd) if L is (a); R = H, hydrocarbyl (preferably alkyl as above), NR2, OR, halogen or acetylacetonate, preferably halogen or OR; R = H or alkyl; Y = Lewis acid; x = 1 or 2, preferably 1 if L is (b), or 1, 2 or 3 if L is (a); y = 1-4, preferably 2 if L is (b), or 1-4 if L is (a); z = 0-2, preferably 0; R and Y may form a common group, with 2x + y and x + y being the valency of M when L is (b) and (a) respectively. |
