Preparation structure of dithioxo- and diselenoxophosphoranes stabilized by intramolecular coordination with a dialkylamino group

Masaaki Yoshifuji, Shinya Sangu, Kazunori Kamijo, Kozo Toyota

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Some ditfaioxophosphoranes 3 stabilized by intramolecular coordination with a dialkylarnino group were prepared, and their structures were analyzed by X-ray crystallography involving [2,4-di-(erf-butyl-6-{isopropYlmethylamino)phenyl](3c), !2,4-di-erf-butyl-6-[(diTnethylamino)methyl]phenyl}- (3f), and (2,4-di-(ert-butyl-6-[2-(dimethylamino)-l,l-dimethylethyl]phenyl} dithioxophosphorane (3h). The bond between the phosphorus atom and the aromatic ring is flexible and the angle narrows with decreasing ring size of the intramolecular coordination. The 31P-NMR signals are shifted to higher field with increasing ring size of the intramolecular coordination or strength of coordination. Similarly, the corresponding diselenoxophosphoranes 4 were prepared. Both their 31P- and 77Se-NMR signals are shifted to higher field with increasing contribution of intramolecular coordination.

Original languageEnglish
Pages (from-to)1049-1055
Number of pages7
JournalChemische Berichte
Volume129
Issue number9
DOIs
Publication statusPublished - 1996 Jan 1

Keywords

  • Diselenoxophosphoranes
  • Dithioxophosphoranes
  • Internal coordination
  • Steric protection

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint Dive into the research topics of 'Preparation structure of dithioxo- and diselenoxophosphoranes stabilized by intramolecular coordination with a dialkylamino group'. Together they form a unique fingerprint.

Cite this