2-(Hydroxyimino)acetoacetic acid tert-butyl ester synthesis
- Product Name:2-(Hydroxyimino)acetoacetic acid tert-butyl ester
- CAS Number:14352-65-9
- Molecular formula:C8H13NO4
- Molecular Weight:187.19
![Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-](/CAS/20210305/GIF/1000210-73-0.gif)
1000210-73-0
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Yield:-
Reaction Conditions:
with sodium nitrite in acetic acid at 20;
Steps:
48 5-(5-Bromo-2-oxo-1,2-dihydroindol-3-ylidenemethyl)-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (2-dimethylamino-ethyl)amide
EXAMPLE 48 (FROM TABLE 1) 5-(5-Bromo-2-oxo-1,2-dihydroindol-3-ylidenemethyl)-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (2-dimethylamino-ethyl)amide A mixture of tert-butyl 3-oxobutyrate and sodium nitrite (1 equiv.) in acetic acid was stirred at room temperature to give tert-butyl-2-hydroximino-3-oxobutyrate.
References:
Sugen, Inc. US6878733, 2005, B1 Location in patent:Page/Page column 195
1694-31-1
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