Electric Literature of 19977-51-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.19977-51-6, Name is 1-(3-Bromoprop-2-ynyl)piperidine, molecular formula is C8H12BrN. In a Article，once mentioned of 19977-51-6
The new clusters [Ru3(CO)9(mu-dppf){P(C 4H3E)3}] (1, E = O; 2, E = S) have been prepared from the Me3NO-induced decarbonylation of [Ru 3(CO)10(mu-dppf)] in the presence of PFu3 (E = O) and PTh3 (E = S), respectively. Upon thermolysis in benzene, the major products are the cyclometalated clusters [(mu-H)Ru3(CO) 7(mu-dppf){mu3-(C4H3E) 2P(C4H2E)}] (3, E = O; 4, E = S). This thermolytic behavior is in marked contrast to that previously noted for the analogous bis(diphenylphosphino)methane (dppm) complexes [Ru3(CO) 9(mu-dppm){P(C4H3E)3}], in which both carbon-hydrogen and carbon-phosphorus bond activation yields furyne- and thiophyne-capped clusters. The crystal structures of 1, 3 and 4 are presented and reveal that phosphine migration has occurred during the transformation of 1,2 into 3,4, respectively. The possible relation of the observed reactivity to the relative flexibilities of the diphosphine ligands is discussed. Density functional calculations have been performed on the model cluster [Ru 3(CO)9(mu-Me4-dppf){P(C4H 3O)3]}], and these data are discussed relative to the ground-state energy differences extant between the different isomeric forms of this cluster. The dynamic NMR behavior displayed by the metalated thienyl ring in cluster 4 has also been investigated by computational methods, and the free energy of activation for the “windshield wiper” motion of the activated thienyl moiety determined.
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Reference：
Piperidine – Wikipedia,
Piperidine | C5H15024N – PubChem