Cyclic organophosphorus compounds. Part IX. 5-Halogenomethyl-5-methyl- and 5,5-dimethyl-2-oxo-2-piperidino-1,3,2-dioxaphosphorinans
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- p. 3033-3036
- https://doi.org/10.1039/j39680003033
Abstract
2α-Chloro(or bromo)-5β-chloromethyl(or bromomethyl)-5α-methyl-2β-oxo-1,3,2-dioxaphosphorinan reacts with piperidine to yield 5β-chloromethyl(or bromomethyl)-5α-methyl-2-oxo-2-piperidino-1,3,2-dioxaphosphorinan. N-Chloropiperidine reacts with 4-methyl-2,6,7-trioxa-1-phosphabicyclo[2,2,2]octane to give 5α-chloromethyl-5β-methyl-2α-oxo-2β-piperidino-1,2,3-dioxaphosphorinan. The existence of the two conformers of 5,5-dimethyl-2-oxo-2-piperidino-1,3,2-dioxaphosphorinan is suggested.Keywords
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