The intramolecular diyl trapping reactions, 7 + 9 and 8 + 10, proceeded reproducibly, in high yield, and with control of both relative and absolute stereochemistry at six contiguous stereogenic centers.
Direct observation of intermediates involved in the intramolecular diyl trapping reaction
β Scribed by Mohammad R. Masjedizadeh; Christian Fite; R. Daniel Little
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- French
- Weight
- 202 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
Triplet diyls capable of being trapped in an intramolecular diyl trapping reaction, have been detected by ESR spectroscopy at low temperatures. Evidence is provided which clearly implicates them as intermediates in the cycloaddition process.
π SIMILAR VOLUMES
A%SW
AbstractΓThe Staudinger reaction of the N-substituted o-azidobenzamide 1 with triphenylphosphine or diphenylmethylphosphine allows the isolation of the intermediate phosphazides as crystalline solids, which have been characterized by spectroscopic methods. These compounds react in aza Wittig type fa