Formation of silaimines from a sterically demanding iminophosphonamido chlorosilylene via intramolecular N-P bond cleavage

Shintaro Takahashi; Akihiko Ishii; Norio Nakata

doi:10.1039/d1cc02812j

Formation of silaimines from a sterically demanding iminophosphonamido chlorosilylene via intramolecular N-P bond cleavage

Chem Commun (Camb). 2021 Jul 8;57(55):6728-6731. doi: 10.1039/d1cc02812j.

Authors

Shintaro Takahashi¹, Akihiko Ishii¹, Norio Nakata¹

Affiliation

¹ Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan. nakata@chem.saitama-u.ac.jp.

PMID: 34159981
DOI: 10.1039/d1cc02812j

Abstract

The sterically demanding iminophosphonamido chlorosilylene [Ph2P(DipN)2]SiCl (Dip = 2,6-diisopropylphenyl) was synthesized and fully characterized using NMR spectroscopy and X-ray crystallography. Substitution reactions of [Ph2P(DipN)2]SiCl with N- and Fe-nucleophiles led to the unexpected formation of the corresponding silaimine derivatives. This process involves the ring-opening rearrangement of three-coordinated silylene intermediates that proceeds via intramolecular N-P bond cleavage.