ChemicalBook CAS DataBase List 8-HYDROXY-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE

8-HYDROXY-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE synthesis

6synthesis methods

Product Name:8-HYDROXY-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE
CAS Number:258532-76-2
Molecular formula:C8H7NO3
Molecular Weight:165.15

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8-HYDROXY-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE

258532-76-2
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Yield: 70%

Reaction Conditions:

in ethyl acetate

Steps:

70.1 8-(2-{[3-(1-Piperazinyl)-2-pyrazinyl]oxy}ethoxy)-2H-1,4-benzoxazin-3(4H)-one, Maleate
Step 1: 8-Hydroxy-2H-1,4-benzoxazin-3(4H)-one. The title compound was prepared according to procedure described in J Med. Chem. 1996, 39, 3533-3538 by replacing 2-amino-m-cresol with 3-amino-pyrocatechol. *The crude product was purified by column chromatography on silica gel using EtOAc/isohexane (1:2 to 2:1) as eluent. Solid; yield 70%. MS m/z 165 (M)⁺. Anal. (C₈H₇NO₃) C, H, N.

References:

Biovitrum AB US6465467, 2002, B1

258532-71-7 Synthesis