Transition-Metal-Catalyzed C−S, C−Se, and C−Te Bond Formation via Cross-Coupling and Atom-Economic Addition Reactions

Utilisation of 1,3‐Dicarbonyl Derivatives in Multicomponent Reactions

Silica sulfuric acid: an efficient and reusable catalyst for the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones

The Chemistry of Transition Metal Complexes Containing Catechol and Semiquinone Ligands

Cu(OTf)2: a reusable catalyst for high-yield synthesis of 3,4-dihydropyrimidin-2(1H)-ones

Indium(III) bromide-catalyzed preparation of dihydropyrimidinones: improved protocol conditions for the Biginelli reaction

Analysis of the EPR of mixtures of M(TBSQ) 2 (M=Mg, Zn, and Cd) and L (L=py, bipy, and tmed) in frozen solutions has demonstrated the existence of biradical species in which the interaction between two semiquinone ligands is purely dipolar in nature. For the monodentate ligand py both cis and trans isomers are identified, with the cis isomer by far the more abundant. Only the cis isomer is found for the bidentate ligands bipy and tmed. The tmed ligand produced additional species for M=Mg, Cd, and Ba, which are proposed as five-coordinate for M=Mg and eight coordinate of M=Cd and Ba

Metal(II) derivatives of 3,5-di-tert-butyl-1,2-ortho-benzoquinone. EPR study of conformation in biradicals

Indium(III) halides-catalyzed preparation of ferrocene-dihydropyrimidinones

Direct electrochemical synthesis of X2InCH2X compounds (X = Br, I) and a study of their coordination chemistry

The electrochemical oxidation of a sacrificial anode (M = Zn, Cd, Hg, In, Sn) in non-aqueous solutions of 3-hydroxyflavone, 1′-hydroxy-2′-acetonaphthone, or 2-ethoxyphenol (= HL) gives ZnL2, CdL2, HgL, InL3, or SnL2 (not all combinations). Adducts with 2,2′-bipyridine (bpy) or N,N,N′,N′-tetramethylethanediamine (tmen) have also been prepared in some cases. Certain zinc and cadmium compounds produce paramagnetic species on exposure to the atmosphere. The structure of Zn(C15H9O3)2tmen has been determined; the crystals are orthorhombic, space group Pbcn, cell dimensions a = 18.817(2) A, b = 13.886(3) A, c = 12.567(3) A, Z = 4, R = 0.0758 for 773 unique observed reflections. The corresponding data for Cd(C12H9O2)2bpy are orthorhombic, space group Pbca, cell dimensions a = 20.338(4) A, b = 30.473(5) A, c = 9.316(2) A, Z = 8, R = 0.0457 for 2623 unique observed reflections. Both molecules have MO4N2 kernels, but each shows significant differences in the two M—O bond lengths to the dioxo ligand, and there are co...

The direct electrochemical synthesis of d10 metal ion derivatives of some anionic bidentate oxygen donors

Clovis Peppe

Papers

Indium(III) bromide-catalyzed preparation of dihydropyrimidinones: improved protocol conditions for the Biginelli reaction

Metal(II) derivatives of 3,5-di-tert-butyl-1,2-ortho-benzoquinone. EPR study of conformation in biradicals

Indium(III) halides-catalyzed preparation of ferrocene-dihydropyrimidinones

Direct electrochemical synthesis of X2InCH2X compounds (X = Br, I) and a study of their coordination chemistry

The direct electrochemical synthesis of d10 metal ion derivatives of some anionic bidentate oxygen donors