Morpholine → 6-(Morpholine-4-carbonyl)nicotinic acid, t-butyl ester

HRID 617425Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 617425
[N:1]1[CH:6]=[C:5]([C:7]([O-:9])=[O:8])[CH:4]=[CH:3][C:2]=1[C:10]([O:12]C)=O.[NH:14]1[CH2:19][CH2:18][O:17][CH2:16][CH2:15]1>O1CCCC1>[N:14]1([C:10]([C:2]2[CH:3]=[CH:4][C:5]([C:7]([O:9][C:5]([CH3:7])([CH3:6])[CH3:4])=[O:8])=[CH:6][N:1]=2)=[O:12])[CH2:19][CH2:18][O:17][CH2:16][CH2:15]1

Komponenten

4

Versuchsvorschrift

For example, the 2,5-pyridinedicarboxylic acid, 2-methyl ester, 5-t-butyl ester 15 is contacted with a molar excess of morpholine in an appropriate organic solvent, such as tetrahydrofuran. The reaction is typically conducted at a temperature range of from room temperature to reflux and for a period of time ranging from 5 hours to 3 days. The 6-(morpholine-4-carbonyl)nicotinic acid, t-butyl ester 16 is isolated from the reaction mixture by standard extractive methods as is known in the art and may be purified by crystallization.

Aufarbeitung

  1. customis typically conducted at a temperature range of from room temperature
  2. temperatureto reflux and for a period of time
  3. waitranging from 5 hours to 3 days

Quellen und Nachweise

ORD-Eintrag
ord-82019a429d3944cd93bc990b4d7417d2
Quelldatensatz
uspto-grants-1999_09
Patentnummer
US05948886

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