1,3-Phosphorotropic rearrangement of pyridyl phosphates to hydroxypyridyl phosphonates
✍ Scribed by Peter P. Onys'ko; Elena A. Suvalova; Tatiana I. Chudakova; Anatolii D. Sinitsa
- Book ID
- 102227903
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 298 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1042-7163
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✦ Synopsis
Abstract
The lithium diisopropylamide (LDA) induced regioselective 1,3‐rearrangement of 3‐ and 2‐ pyridyl phosphates into the corresponding 3‐hydroxy‐4‐pyridyl‐and 2‐hydroxy‐3‐pyridylphosphonates has been observed and investigated. The rearrangement is proposed as a useful method for a directed introduction of a phosphoryl group into a hydroxypyridine nucleus.
📜 SIMILAR VOLUMES
Benzyl dialkyl phosphates are deprotonated enantioselec-up to 50%. The pro-(S) hydrogen is removed by amides hatively by homochiral lithium amides of isopropyl( 1-phenyl-ving (S) configuration. Homochiral diethyl (S)-phenyl[D+ ethy1)amine or bis(1-phenylethy1)amine. The short-lived ben-methyl phosph