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Synthesis, biological assay in vitro and molecular docking studies of new imidazopyrazinone derivatives as potential dipeptidyl peptidase IV inhibitors.
It seems that the introduction of a substituted benzyl moiety onto the imidazopyrazinone could remarkably improve the inhibitory activity of compound 17h. Expand
Insertion of Isocyanate and Isothiocyanate into the Ln–P σ-Bond of Organolanthanide Phosphides
The synthesis, structure, and reactivity of organoyttrium phosphides toward phenyl isocyanate (PhNCO) and phenyl isothiocyanate (PhNCS) are described. Reaction of (TpMe2)CpYCH2Ph(THF) (TpMe2 =Expand
Synthesis, structures, and reactivity of yttrium alkyl and alkynyl complexes with mixed Tp(Me2)/Cp ligands.
Results indicated that 1 can effectively catalyze the cross-coupling reactions of phenylacetylene with carbodiimides, and all of these new complexes were characterized by elemental analysis and spectroscopic properties, and their solid-state structures were also confirmed by single-crystal X-ray diffraction analysis. Expand
Gamma-deprotonation of anionic bis(trimethylsilyl)amidolanthanide complexes with a countered [(Tp(Me2))2Ln]+ cation.
The results reveal that the gamma-deprotonation degree of advancement increases with an increase of the steric hindrance around the central metal ion. Expand
Versatile Reactivity of Scorpionate-Anchored Yttrium-Dialkyl Complexes towards Unsaturated Substrates.
A series of unusual chemical-bond transformations were observed in the reactions of high active yttrium-dialkyl complexes with unsaturated small molecules in which the newly formed N=C=CHPh ligands bound to the metal through the terminal nitrogen atoms. Expand
Reactivity of Scorpionate-Anchored Yttrium Alkyl Complex toward Organic Nitriles
The mixed TpMe2/Cp-supported yttrium monoalkyl (TpMe2)CpYCH2Ph(THF) (1) reacted with 1 equiv of PhCN in THF at room temperature to afford the imine–enamine tautomer (TpMe2)CpY(N(H)C(Ph)═CHPh)(THF)Expand
Room temperature C-N bond cleavage of anionic guanidinate ligand in rare-earth metal complexes.
These reactions show that rare-earth metals can promote a C-N bond cleavage of the guanidine anion [N=C(NMe2)2](-) at room temperature. Expand
Me-Si bond cleavage of anionic bis(trimethylsilyl)amide in scorpionate-anchored rare earth metal complexes.
The mechanism for the formation of complexes 1 and 2 was studied by controlling the substrate stoichiometry and the reaction sequence and revealed that the bis(trimethylsilyl)amine anion N(SiMe(3))(2)(-) can undergo two routes of γ-methyl deprotonation and Si-Me cleavage for its functionalizations. Expand
One‐Step Direct Functionalization of Tetrahydroisoquinolines under Copper and Acid Catalysis
A facile, one-step, direct functionalization of the C1 and N positions of tetrahydroisoquinolines was developed. Unprotected tetrahydroisoquinolines, indoles, and benzaldehydes could be used asExpand