Moon, Hye Won; Maity, Ayan; Radosevich, Alexander T. published the artcile< Ancillary Tethering Influences σ3-P vs σ5-P Speciation and Enables Intermolecular S-H Oxidative Addition to Nontrigonal Phosphorus Compounds>, Formula: C19H16O, the main research area is dibenzoazepine phosphoramide preparation oxidative addition alc thiol phosphorane; crystal structure dibenzoazepine alkoxy alkylthio phosphorane; mol structure dibenzoazepine alkoxy alkylthio phosphorane.
The design and synthesis of dibenzoazepine-based nontrigonal phosphorus(III) triamide (2), bearing a peripheral ethylene bridge is described. By comparison to a compound lacking the ethylene bridge, PN(o-NMeC6H4)2 (1), the dibenzoazepine 2 is shown to exclusively form σ5-P oxidative addition products upon E-H addition (E = OR, SR) in preference to a σ3-P adduct from cooperative addition across one P-N bond. The resulting pentacoordinate phosphoranes have been characterized by multinuclear NMR spectroscopy and X-ray crystallog. DFT calculations on relative energies of σ3-P and σ5-P species indicate that the ethylene linker in 2 energetically destabilizes the σ3-P tautomer of the phosphorane product (2·[H][E]) by constraining rotation along the C-N bond, favoring formation of σ5-P phosphoranes by ring-chain tautomerism.
Organometallics published new progress about Azepines Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), PROC (Process), RACT (Reactant or Reagent), PREP (Preparation) (dibenzo[b,f]azepines). 76-84-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C19H16O, Formula: C19H16O.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts