Details

Autor(en) / Beteiligte

• Horsley Downie, Thomas M
• Hall, Jonathan W
• Collier Finn, Thomas P
• Liptrot, David J
• Lowe, John P
• Mahon, Mary F
• M Mullin c, Claire L
• Whittlesey, Michael K

Titel

The first ring-expanded NHC-copper() phosphides as catalysts in the highly selective hydrophosphination of isocyanates

Ist Teil von

• Chemical communications (Cambridge, England), 2020-11, Vol.56 (87), p.13359-13362

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A range of N-heterocyclic carbene-supported copper diphenylphosphides (NHC = IPr, 6-Dipp, SIMes and 6-Mes) were synthesised. These include the first reports of ring-expanded NHC-copper( i ) phosphides. The compounds were characterised by NMR spectroscopy and X-ray crystallography. Reaction of (6-Dipp)CuPPh 2 with isocyanates, isothiocyanates and carbon disulfide results in the insertion of the heterocumulene into the Cu-P bond. The NHC-copper phosphides were found to be the most selective catalysts yet reported for the hydrophosphination of isocyanates. They provide access to a broad range of phosphinocarboxamides in excellent conversion and good yield. The first copper( i ) phosphides supported by ring-expanded N-heterocyclic carbenes have been synthesised and react readily with heterocumulenes. These copper( i ) phosphides are highly active and selective in the hydrophosphination of isocyanates.