摘要:
Treatment of the monoacetylide complexes TpRuCl(CdropCR)(NO) (R = Ph (1a), p-CH3C6H4 (1b), Bu-t (1c), CH2CH2OH (Id), CH2OH (1e), C(Me)(2)OH (1f), C(Ph)(2)OH (1g); Tp = BH(pyrazol-1-yl)(3)) with HBF4.Et2O in methanol afforded the ketonyl complexes TpRuCl-(CH2C(O)R)(NO) (R = Ph (2a), p-CH3C6H4 (2b), Bu-t (2c), CH2CH2OMe (2d), CH2OH (2e)) and the alpha,beta-unsaturated acyl complexes TpRuCl(C(O)CH=CR'(2))(NO) (R' = Me (3f), Ph (3g)), respectively. While the latter were produced by hydration via allenylidene species, the former were presumably generated from the reaction of eta(2)-coordinated 1-alkyne species with adventitious water.