title: Quantitative kinetic investigation of triazole-gold(I) complex catalyzed [3,3]-rearrangement of propargyl ester.
abstract: The triazole-gold(I) complex catalyzed [3,3]-rearrangement of propargyl ester has been quantitatively investigated through in situ IR. First order dependence of the initial rates on [Au] and [propargyl ester] suggested that the turnover-limiting step is the associative ligand substitution. The activation enthalpy was also determined to be 7.8 kcal mol(-1). TA-Au catalysts with different triazole derivatives were also tested, giving a linear free energy relationship with a ρ value of 0.74.
authors.affiliation: C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA. Xiaodong.Shi@mail.wvu.edu.
authors.forename: Yumeng
authors.initials: Y
authors.lastname: Xi
authors.forename: Qiaoyi
authors.initials: Q
authors.lastname: Wang
authors.forename: Yijin
authors.initials: Y
authors.lastname: Su
authors.forename: Minyong
authors.initials: M
authors.lastname: Li
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Shi
mesh_terms: D000480:Alkynes / Q000737:chemistry*; D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D004952:Esters; D006046:Gold / Q000737:chemistry*; D007700:Kinetics; D013816:Thermodynamics; D014230:Triazoles / Q000737:chemistry*
chemical_list: D000480:Alkynes; D056831:Coordination Complexes; D004952:Esters; D014230:Triazoles; D006046:Gold