In the title compound, [Al(CH(3))(C(23)H(15)F(10)N(3))], the Al(III) atom is coordinated in a distorted tetra-hedral geometry by three N atoms from the tridentate amine and by one C atom of the methyl substituent. Further, there is a short intra-molecular Al⋯F contact [2.5717 (11) Å], leading to an overall distorted trigonal-bipyramidal coordination environment around Al(III).

Kinetic resolution of 6-aryl-2,6-hexanediones was achieved with chiral secondary amine catalyzed intramolecular aldolization. The current kinetic resolution protocol enables the synthesis of both enantiomers of cyclohexenones with moderate to good enantioselectivity.

Copper amine oxidases are important enzymes, which contribute to the regulation of monoand polyamine levels. Each monomer contains one Cu(II) ion and 2,4,5-trihydroxyphenylalanine (TPQ) as cofactors. They catalyze the oxidative deamination of primary amines to aldehydes with a ping-pong mechanism consisting of a transamination. The mechanism is followed by the transfer of two electrons to molec...

We previously gave a picture of the homeostatic characteristics of polyamine (PA) biosynthesis and conjugation in tobacco (Nicotiana tabacum) plant organs during development. In this work, we present the sites and regulation of PA catabolism related to cell division/expansion, cell cycle progression, and vascular development in the tobacco plant. Diamine oxidase (DAO), PA oxidase (PAO), peroxid...

Tyramine and benzylamine have been described as stimulators of glucose transport in adipocytes. This effect is dependent on amine oxidation by monoamine oxidase (MAO) or semicarbazide-sensitive amine oxidase (SSAO) and on the subsequent hydrogen peroxide formation as already demonstrated by blockade with oxidase inhibitors or antioxidants and potentiation with vanadate. In this work, we extende...

Lehmphul et al. report the effect of 3-iodothyronamine in reducing insulin release in a model of immortalized pancreatic β-cells. Notwithstanding the simplified β-cell model used, this article offers an opportunity to reconsider, possibly under a new light, an old issue of research, which excited people working on amine oxidases (AOs) in the last 20 years. Toward this aim, we would like to prop...

The semicarbazide-sensitive amine oxidases (SSAOs) are grouped together under the Enzyme Commission classification, EC 1.4.3.6 [amine: oxygen oxidoreductase (deaminating) (copper containing)] and have a history dating back to the discovery of histaminase by Best in 1929 [l]. This enzyme was subsequently renamed diamine oxidase (DAO), to help establish its separate identity from monoamine oxidas...

Resveratrol has been reported to inhibit monoamine oxidases (MAO). Many substrates or inhibitors of neuronal MAO interact also with other amine oxidases (AO) in peripheral organs, such as semicarbazide-sensitive AO (SSAO), known as primary amine oxidase, absent in neurones, but abundant in adipocytes. We asked whether phenolic compounds (resveratrol, pterostilbene, quercetin, and caffeic acid) ...