The effect of the addition of H,PO, oil the ROMP activity of cyclooctene (COE) with first- [Cl-2-(PCy3)(2)Ru=CHPH] and second-generation [(H(2)IMes)Cl-2(PCy3)Ru=CHPh] Grubbs' catalysts 1 and 4 (Cy=cyclohexyl, Ph=phenyl, ...
Kinetic and mechanistic studies oil the formation of an oxoiron(IV) porphyrin cation radical bearing a thiolate group as proximal ligand are reported. The SR complex, a functional enzyme mimic of P450, was oxidized in pe...
The Pd-0-mediated rapid trapping of methyl iodide with an excess amount of a heteroaryl-substituted tributylstannane has been investigated with the aim of incorporating a short-lived C-11-labelled methyl group into the h...
The syntheses, structures, and characterization of six Ln(3+)-Cu2+-glycine (Hgly) coordination polymers Lire described in this paper. They represent three types of structures. Type I (Ln = La (1). Pr (2), and Sm (3)) is ...
Near-monodisperse Bi-doped anatase TiO2 nanospheres with almost uniform diameters in the range of 147 to 87 nm were prepared simply by introducing different amounts of bismuth nitrate pentahydrate into the reaction syste...
An expeditious total synthesis of the highly cytotoxic F-ATPase inhibitor cruentaren A (1) is described based on a ring-closing alkyne metathesis (RCAM) reaction for the formation of the macrocylic ring. Other key transf...
The [3+2] cycloaddition reaction of a tungsten-containing carbonyl ylide with methyl vinyl ether and the insertion reactions of the nonstabilized carbene complex intermediates produced have been investigated through the ...
A Morita-Baylis-Hillman (MBH) reaction catalyzed by thiourea was monitored by ESI-MS(/MS) and key intermediates were intercepted and characterized. These intermediates Suggest that thiourea acts as an organocatalyst in a...
The synthesis of various heterocycles and carbocycles (tetrahydrofurans, pyrrolidines, cyclopentanes) has been achieved by using new and efficient ionic addition/cyclization sequences. Nitroolefins play an important role...
We have carried out a theoretical investigation of the Dotz reaction between acetylene and a series of chromium Fischer-type carbenes [(CO)(5)Cr=C(X)R] with different representative substituents (R=CH=CH2, Ph) and hetero...
Domino reactions have received great attention as efficient synthetic methodologies for the construction of structurally complex molecules from simple materials in a single operation. Catalysts in domino reactions have a...