Atom-Economical Synthesis of the Versatile Ruthenium Precursor [TpRuCl(COD)] (Tp = Hydrotris(pyrazol-1-yl)borate) Discloses a Diamine Ligand Dealkylation Process | Zendy

M. Jimenez-Tenorio | Zendy; M.C. Puerta | Zendy; Pedro Valerga | Zendy

Open Access

Atom-Economical Synthesis of the Versatile Ruthenium Precursor [TpRuCl(COD)] (Tp = Hydrotris(pyrazol-1-yl)borate) Discloses a Diamine Ligand Dealkylation Process

Author(s) -

M. Jimenez-Tenorio,

M.C. Puerta,

Pedro Valerga

Publication year - 2015

Publication title -

organometallics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.231

H-Index - 172

eISSN - 1520-6041

pISSN - 0276-7333

DOI - 10.1021/om501307a

Subject(s) - chemistry , alkylation , ligand (biochemistry) , diamine , medicinal chemistry , boron , toluene , ruthenium , amine gas treating , derivative (finance) , organic chemistry , catalysis , biochemistry , financial economics , economics , receptor

An atom-economical, more environmentally friendly alternative method of synthesis of the versatile complex [TpRuCl(COD)] (1) (Tp = hydrotris(pyrazol-1-yl)borate; COD = 1,5-cyclooctadiene) has been developed. Instead of starting from [RuHCl(COD)(NH2NMe2)3]+, 1 can be conveniently prepared by reaction of the derivative trans-[RuCl2(COD)(Me2NCH2CH2NHMe)] (2) with KTp in acetone at 55 °C. Compound 2, which has been structurally characterized by X-ray crystallography, results from an unexpected diamine dealkylation process which takes place in the course of the reaction of [{RuCl2(COD)}n] with tmeda (tmeda = Me2NCH2CH2NMe2) in toluene at 80 °C. This process had been overlooked in the literature, as compound 2 had been misidentified as cis-[RuCl2(COD)(tmeda)], and suggests that amine dealkylation might occur more commonly than previously anticipated.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research