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4-Halogeno-3-oxides and sulfides of the 3,4-dihydro-2h-1,2,3-diazaphosphole system

✍ Scribed by Graziano Baccolini; Renato Dalpozzo; Paolo E. Todesco

Book ID
102227844
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
396 KB
Volume
3
Category
Article
ISSN
1042-7163

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✦ Synopsis

4-Bromodiazaphosphole-3-oxides or sulfides can be obtained bv reaction o f the cowesponding unsubstituted deriintiuz wirh appropriate reagents. PTAB was demonstrated to be wry regio-and stereoselective, allowing bromination exclusiwly at the 4-position of the ring with prernlent or exclusive formation of one of the two possible isomers. Howeuer, when regioseleeticity is not required, cheaper and more auailable bromine or NBS can be used conwniently. 4-Chlorodiazaphosphole-3-oxides can be obtained by reaction of the corresponding unsubstituted derimtiue with NCS. 4-Bromodiazaphosphole-3-oxides undergo stereoselectiuz methanolysis as well as parent unsubst it u ted oxides.

πŸ“œ SIMILAR VOLUMES

ChemInform Abstract: The Electrochemical
ChemInform Abstract: The Electrochemical Oxidation of 2,3-Dihydro-1H-1,3,2-diazaphospholes
✍ V. V. YANILKIN; V. I. MOROZOV; F. F. NIGMADZYANOV; T. V. GRYAZNOVA; A. M. KIBARD πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 26 KB πŸ‘ 1 views

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