Intermolecular Dearomatization of Naphthalene Derivatives by Photoredox-Catalyzed 1,2-Hydroalkylation.

An intermolecular hydroalkylative dearomatization of naphthalenes with commercially available α-amino acids is achieved via visible-light photoredox catalysis. With an organic photocatalyst, a series of multi-substituted 1,2-dihydronaphthalenes are obtained in good-to-excellent yields. Intriguingly, by tuning the substituents at the C2 position of naphthalenes, formal dearomative [3+2] cycloadditions occur exclusively via a hydroalkylative dearomatization-cyclization sequence.

Asymmetric Dearomatization of Indole Derivatives with N-Hydroxycarbamates Enabled by Photoredox Catalysis.

Dearomatization of indoles provides efficient synthetic routes for substituted indolines. In most cases, indoles serve as nucleophiles. Reported here is an asymmetric dearomatization reaction of indole derivatives that function as electrophiles.

Diaqua-(1,10-phenanthrolin-2-ol)nickel(II) dinitrate.

In the mononuclear title complex, [Ni(C(12)H(8)N(2)O)(2)(H(2)O)(2)](NO(3))(2), the Ni(II) ion is coordinated in a distorted octa-hedral geometry. The dihedral angle between the two mean planes defined by the phenanthroline ligands is 88.26 (6)°.

Perchloratobis[1-(1,10-phenanthrolin-2-yl)-2-pyridone]zinc(II) perchlorate.

In the title mononuclear complex, [Zn(ClO(4))(C(17)H(11)N(3)O)(2)]ClO(4), the Zn(II) ion is coordinated in a distorted octa-hedral geometry. The dihedral angles between the pyridine rings and the mean planes of the 1,10-phenanthroline ring system in each of the 1-(1,10-phenanthrolin-2-yl)-2-pyridone (PP) ligands is 24.51 (10)° for the tridendate PP ligand and 73.