6-METHYL-2,3-DIHYDRO-PYRIDO[3,2-B][1,4]OXAZINE-4-CARBOXYLIC ACID TERT-BUTYL ESTER synthesis
- Product Name:6-METHYL-2,3-DIHYDRO-PYRIDO[3,2-B][1,4]OXAZINE-4-CARBOXYLIC ACID TERT-BUTYL ESTER
- CAS Number:381226-84-2
- Molecular formula:C13H18N2O3
- Molecular Weight:250.29
![6-METHYL-3,4-DIHYDRO-2H-PYRIDO[3,2-B][1,4]OXAZINE](/CAS/GIF/20567-67-3.gif)
Yield:381226-84-2 80%
Reaction Conditions:
in hexane;
Steps:
56.d d
d 6-Methyl-2,3-dihydro-pyrido[3,2-b][1,4]oxazine-4-carboxylic acid tert-butyl ester A mixture of 6-methyl-3,4-dihydro-2h-pyrido[3,2-b][1,4]oxazine (0.89 g, 5.93 mmol) and di-tert-butyl dicarbonate was heated and stirred at 60° C. for 48 h, and then allowed to cooled to ambient temperature to give crude product. Recrystallization of the crude product from hexane gave the title compound (1.18 g, 80% yield) as a white solid. This crude product was used in next step reaction without further purification.
References:
US2002/169200,2002,A1
24424-99-5
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![6-METHYL-4H-PYRIDO[3,2-B][1,4]OXAZIN-3-ONE](/CAS/GIF/CB42458898.gif)
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