Results 231 to 240 of about 485,962 (354)

Polyphosphorus Ligand Complexes of Coinage Metals for Multiple Capturing of Intact P4 Tetrahedra

open access: yesAngewandte Chemie, EarlyView.
Self‐assembly reactions of [CpRFe(η5‐P5)] (CpR = C5(CH3)5 and C5(4‐EtC6H4)5) with coinage metal salts and white phosphorus afforded an unprecedented novel class of mixed polyphosphorus ligand complexes in which metal ions multiply coordinate intact P4 tetrahedra.
Claudia Göschl   +5 more
wiley   +2 more sources

N‐Insertion of Diazonium Salts Into Ketone Derivatives

open access: yesAngewandte Chemie, EarlyView.
Diazonium salts insert into ketones and their silyl enol ethers through a sequence of α‐azenylation and ring expansion via an N‐iminoaziridinium species. Coupled with an efficient N‐N bond cleavage, this protocol offers a mild alternative to Beckmann rearrangements and a powerful tool for skeletal editing of ketones.
Mohammed Anif Pasha   +3 more
wiley   +2 more sources

Rhodium‐Catalyzed Intermolecular Arylative [2 + 2 + 1] Annulation–Oxidation to Produce Electron‐Deficient Azulene‐Embedded Polycyclic Aromatic Hydrocarbons

open access: yesAngewandte Chemie, EarlyView.
The synthesis of electron‐deficient azulene‐embedded polycyclic aromatic hydrocarbons has been achieved by the rhodium‐catalyzed intermolecular arylative [2 + 2 + 1] annulation of teraryl diynes with dialkyl acetylenedicarboxylates followed by oxidation at room temperature.
Yoshinobu Kamiya   +9 more
wiley   +2 more sources

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