| Abstrakt: |
The syntheses, structures, and reactivities of new (η6-arene)tricarbonylchromium compounds bearing propargylamines are described. The reaction of (η6-C6H5Cl)tricarbonylchromium with propargylamines affords YCH(R)C&tbd1;CPh[Cr(CO)3] (1a, R = H, Y = NMe2; 1b, R = Me, Y = NMe2; 1c, R = H, Y = N(Me)(CH2Ph)) in good yield. The reaction of 1a,b with Li2PdCl4 generates the air-stable dimeric compounds {Pd-trans-C[(Ph)Cr(CO)3]&dbd;C(Cl)CH(R)NMe2(μ-Cl)}2 (2a, R = H; 2b, R = Me), which can be converted to a monomeric and soluble species {Pd-trans-C[(Ph)Cr(CO)3]&dbd;C(Cl)CH(R)NMe2(Cl)(Py)} (3a, R = H; 3b, R = Me) after reaction with pyridine. Compounds 1a, 1c, and 3a were structurally characterized by single-crystal X-ray diffraction studies. |
