Hydrolyse des Chlorids in 92-proz. Ausbeute hergestellt. Die lsomeren wurden durch Kristallisation getrennt. (3) cis-und trans-(3) unterscheiden sich ebenfalls in den IHund SIP-NMR-Spektren. 8 = 1.27 ppm (CH3, q) (gemessen in D20 rnit DSS als internem Standard) JH-CH, = 6.2 Hz JH-CH, = 6.2 Hz JP-O-
Stereospecific Synthesis of cis-2-Hydroxy-4-methyl-1,3,2-dioxaphosphorV-inane-2-thione
✍ Scribed by Doz. Dr. M. Mikołajczyk
- Publisher
- John Wiley and Sons
- Year
- 1969
- Tongue
- English
- Weight
- 255 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
✦ Synopsis
Monothiophosphoric acids ( A ) are chiralic compounds with the phosphorus atom as asymmetric center [ I ] . Because of their high reactivity they prove most suitable as starting materials for the synthesis of other optically active phosphorus compounds containing P=O-or P=S-groupings [ 1 , 2 1 .
We report here o n the geometric isomerism of cyclic monothiophosphoric acid derivatives [31 which occurs when the molecule containslat least one asymmetric center a t a ring carbon atom. (a) 119-123.5 72 -154.3 (bl Icl I I EH, 1 74-99 I ;; (C) CH3 CH3 177-180 -144.3 la1 From n-propanallether.
[cl Mixture of cis and trans forms.
📜 SIMILAR VOLUMES
## Abstract Starting from the known epoxy alcohol (I), a new strategy for the synthesis of the potent fungicide (IX) in multigram quantities is developed.