Benzimidazole, Benzothiazole and Benzoxazole Ruthenium(II) Complexes; Catalytic Synthesis of 2,3-Dimethylfuran

Synthesis of Pd(II) 1-alkylperimidine complexes as efficient catalysts for Suzuki reactions involving arylchlorides

“…The NMR and IR values are similar to those found for N-coordinated metal complexes [18][19][20][21][22][23][24].…”

“…Our contribution to this field has started with syntheses of 2-imidazoline and benzimidazole complexes of Pt(II), Rh(I), Ru(II), and Pd(II) which are capable of catalyzing the cyclopropanation of styrene with ethyl diazoacetate and intramolecular cyclization of (Z)-3-methylpent-2-en-4-yn-1-ol into 2,3-dimethylfuran in good yields [18][19][20][21][22]. Recently, we have developed improved procedures of Heck and Suzuki reactions of aryl chlorides making use of novel ligands 1,3-bis(2,4,6-trimethylbenzyl)imidazolium chloride, 1-alkylimidazoline, α -bis(imine) [23,24].…”

Synthesis of novel 1-alkylimidazoline and 1-alkylbenzimidazole palladium(II) complexes as efficient catalysts for Heck and Suzuki reactions involving arylchlorides

“…23, 160.75, 144.15, 143.49, 144.39 and 141.22 ppm, respectively for complexes 1a and b and 2a-d. The 1 H NMR spectra of the complexes further supported the assigned structures; the resonances for C(2)-H were observed as sharp singlets in the 7.30, 7.15, 7.66, 8.46, 8.32, and 8.32 [10][11][12][13][14].…”

“…Our contribution to this field has started with syntheses of 2-imidazoline and benzazole complexes of Pt(II), Rh(I) and Ru(II) which are capable of catalyzing the cyclopropanation of styrene with ethyl diazoacetate and intramolecular cyclization of (Z)-3-methylpent-2-en-4-yn-1-ol into 2,3-dimethylfuran in good yields [10][11][12][13][14]. The imidazoline and benzimidazole complexes are cheap to prepare, insensitive to air and moisture and are thermally stable in both the solid state and in solution.…”

Ruthenium(II) half-sandwich complexes containing thioamides: Synthesis, structures and catalytic transfer hydrogenation of ketones

“…Moreover complexes containing phosphine ligands continue to enjoy immense popularity in connection with homogenous catalysis and organometallic chemistry [18e23]. A large number of ruthenium complexes with arene ligands have been employed in different catalytic reactions including allylic alkylation [24], amination [25], cyclization [26], cycloisomerization of dienes [27] and hydroformylation [28] and transfer hydrogenation.…”