Radical induced fragmentation of amino acid esters using triphenylcorrole(CuIII) complexes

Metal Complexes with Biologically Important Ligands, XXXIX [1] Platinum(IV) Complexes with a-Amino Acid Esters and Peptide Esters;

a-Amino Acid Esters, Peptide Esters, Platinum(IV) Complexes, "N NMR Spectra, Pt NMR Spectra The platinum(IV) complexes PtX4L2 (X = Cl, Br; 2 X = oxalate; L = glyOEt, glyglyOEt, gly-cleuOEt; 2 L = metOEt) have been obtained by oxidative addition of halogenes to platinum(II) compounds PtX2L2A high field shift of <3N (—50 ppm) is observed for the coordinated amino acid ligand of various platinum c...

Metal-mediated coupling of amino acid esters with isocyanides leading to new chiral acyclic aminocarbene complexes.

Metal-mediated coupling between equimolar amounts of cis-[PdCl2(CNR1)2] (1–5) and the amino acid esters L-HTyrOMe (7) or L-HProOtBu (8) proceeds at 40 °C in chloroform over ca. 6 h. The subsequent workup affords the complexes cis-[PdCl2(CNR1){C(TyrOMe)vNHR1}] (R1 = Xyl 9, 2-Cl-6-Me-C6H3 10) or cis-[PdCl2(CNR1){C(ProOtBu)vNHR1}] (R1 = Xyl 11, 2-Cl-6-Me-C6H3 12, Cy 13, tBu 14, 2-naphthyl 15) in g...

Antibacterial activity of copper-amino acid complexes.

Copper complexes of L-alanine, L-arginine, L-histidine, L-lysine, L-proline and L-threonine were studied for their antibacterial activity against Staphylococcus aureus, Streptococcus pyogenes and Escherichia Coli. The complexes of 1-alanine, 1-proline and 1-threonine were nearly as active as ampicillin against Strep. Pyogenes. Mixed complexes of these amino acids showed similar effect. Other co...

A convenient synthesis of amino acid methyl esters.

A series of amino acid methyl ester hydrochlorides were prepared in good to excellent yields by the room temperature reaction of amino acids with methanol in the presence of trimethylchlorosilane. This method is not only compatible with natural amino acids, but also with other aromatic and aliphatic amino acids.

synthesis of heterocyclic esters of caffeic acid using mitsunobu reaction