| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5275377 | Tetrahedron Letters | 2012 | 4 Pages |
Abstract
Efficient synthetic methodology for preparation of 2-phosphiniminium-5-methylbenzenesulfonate zwitterions is reported. Staudinger reaction between phosphines and n-propyl 2-azido-5-methylbenzenesulfonates followed by sulfonate ester deprotection using pyridinium tetrafluoroborate/pyridine afforded the zwitterions in excellent yields. This new route directly accesses ortho-substituted-arenesulfonate ligands that incorporate a phosphinimine, a strong σ-donor.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
