Kinetic studies of the inversion of .ETA.2-trans-2-butene in platinum(II) complexes containing various amino carboxylates.
スポンサーリンク
概要
- 論文の詳細を見る
Platinum(II) complexes containing <I>S</I>,<I>S</I>- or <I>R</I>,<I>R</I>-<I>trans</I>-2-butene and various L-amino carboxylate, <I>i.e.</I> <I>cis</I>(<I>N</I>,olefin)[PtCl(L-prolinate)(<I>S</I>,<I>S</I>-<I>trans</I>-2-butene)] and <I>trans</I>(<I>N</I>,olefin)[PtCl(L-am)(<I>S</I>,<I>S</I>- or <I>R</I>,<I>R</I>-<I>trans</I>-2-butene)], were synthesized (L-am=L-prolinate, <I>N</I>-methyl-L-prolinate, <I>N</I>-benzyl-L-prolinate, L-alaninate and L-valinate). The kinetics of the inversion reaction of the coordinated <I>S</I>,<I>S</I>- or <I>R</I>,<I>R</I>-<I>trans</I>-2-butene was investigated in acetone in the presence of an excess of <I>trans</I>-2-butene at 8.0 °C. Second order rate law was obeyed with respect to the concentrations of the complex and free olefin, and no solvent path was observed. In the <I>trans</I> (<I>N</I>,olefin) complexes, interactions steric around the coordinated nitrogen atoms seems to be responsible in determining the ease of inversion <I>via</I> an associative mechanism. On the other hand, smaller rate for the <I>cis</I>(<I>N</I>,olefin) complex than the corresponding trans isomer seems to be due to the trans effect.
- 公益社団法人 日本化学会の論文
著者
-
Saito Kazuo
Chemistry Department, Faculty of Science, Tohoku University
-
Terai Yoshiro
Chemistry Department, Faculty of Science, Tohoku University
-
Kashiwabara Kazuo
Chemistry Department, Faculty of Science, Tohoku University
-
Kido Hiroaki
Chemistry Department, Faculty of Science, Tohoku University
-
Fujita Junnosuke
Chemistry Department, Faculty of Science, Tohoku University
関連論文
- Preparation and properties of the uni- and binuclear [Co(III)N2O4] type complexes containing (S)-2-amino-1-propanol.
- Synthesis and structure of a hexa-coordinated vanadium(IV) complex aquaoxo[N-(2-pyridylmethyl)iminodiacetato]vanadium(IV) dihydrate.
- Kinetic studies of the acid hydrolysis of aquaoxo[N-(2-pyridylmethyl)iminodiacetato]vanadium(IV) and aqua(nitrilotriacetato)oxovanadate(IV) in aqueous perchloric acid solution.
- A kinetic study of the ligand exchange between bis(acetylacetonato)oxovanadium(IV) and acetylacetone[14C] in organic solvents.
- Isotopic Exchange Kinetics between Trisacetylacetonatocobalt(III) and Acetylacetone-14C in Organic Solvents
- Ligand isotopic exchange of tris(acetylacetonato)germanium(IV) perchlorate in organic solvents.
- Preparation, optical resolution, racemization, and ligand isotopic exchange of tris(1,3-diphenyl-1,3-propanedionato)-germanium(IV) perchlorate in acetonitrile.
- Asymmetric induction on the reaction of prochiral olefins with chloro-L-aminocarboxylato-.ETA.2-ethyleneplatinum(II).
- Kinetics and mechanism of ligand exchange of tris(acetylacetonato)iron(III) in acetylacetone.
- A relationship between the circular dichroism and the configuration of asymmetric nitrogen in trans(N,ethylene)-chloro-L-aminocarboxylato-.ETA.2-ethyleneplatinum(II).
- Kinetics and Steric Course of the Substitution of Various Olefins for the Asymmetric Olefin in trans(N,olefin)-Chloro-L-prolinato-trans-2-buteneplatinum(II)
- Kinetics of ligand exchange between tris(acetylacetonato[2-14C])cobalt(III) and acetylacetone in acetonitrile. Evidence for SN1 mechanism.
- Ligand isotopic exchange kinetics of tris(acetylacetonato)-titanium(IV) perchlorate in acetonitrile.
- Kinetics and mechanisms of ligand exchange reactions of tris(acetylacetonato)-chromium(III), -cobalt(III), -ruthenium(III), and -rhodium(III) in acetylacetone.
- Kinetic studies of the inversion of .ETA.2-trans-2-butene in platinum(II) complexes containing various amino carboxylates.
- Kinetics and Mechanism of Aquation and Anation of Some Amino Acid Pentamminecobalt(III) Complexes in Acid Aqueous Solutions