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Bromo-5,6-diphenyl-2,3,5,6-tetrahydro-4H-oxazin-2-one

Yamada, S. Hongo, C. Yoshioka, R. Chibata, I. Agric. Biol. Chem. 1979,43, 395. [Pg.152]

Physical Data white solid, decomposes upon heating. [Pg.152]

Preparative Methods N-t-Boc- and Al-Cbz-3-bromo-5,6-diphenyl-2,3,5,6-tetrahydrooxazin-2-ones are not commercially available. They are prepared by addition of 1 equiv of N-Bromosuccinimide to a solution of the parent oxazinone (commercially available as the individual enantiomers or as racemates) in CCI4 at reflux. Upon cooling of the reaction mixture to 0 °C and filtering off the succinimide, the CCI4 is removed under reduced pressure and the bromooxazinone is obtained in essentially quantitative yield as a white solid and is used without further purification.  [Pg.152]

Handling, Storage, and Precautions generally prepared immediately prior to use. Chromatography on silica gel results in decomposition. [Pg.152]

Coupling with Allylsilanes. Allyltrimethylsilanes react with the bromooxazinone in the presence of Zinc Chloride in THF [Pg.152]


See other pages where Bromo-5,6-diphenyl-2,3,5,6-tetrahydro-4H-oxazin-2-one is mentioned: [Pg.152]    [Pg.152]    [Pg.153]    [Pg.154]    [Pg.551]   


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1.3- Oxazin-6-ones

2.3- Diphenyl-5,6,7,8-tetrahydro

3-bromo-2,5-diphenyl

4H-1,3-Oxazin

4H-1,3-Oxazines

Tetrahydro-1,3-oxazines

Tetrahydro-1,4-oxazin-2-ones

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