Hydrazine hydrate (1:1) → HCID 4358478, compound

HRID 1777222Notes

Reaction equation

HRID 1777222 reaction equation
[O:1]1[CH2:6][CH2:5][N:4]([C:7](=[O:13])[C:8](OCC)=[O:9])[CH2:3][CH2:2]1.O.[NH2:15][NH2:16]>C(O)C>[O:1]1[CH2:6][CH2:5][N:4]([C:7](=[O:13])[C:8]([NH:15][NH2:16])=[O:9])[CH2:3][CH2:2]1

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 3414011Ethyl α-oxo-4-morpholineacetate

Product 1

HCID 4358478HCID 4358478, compoundYield 97.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Ethyl 2-morpholino-2-oxoacetate (1.0 g, 5.34 mmol) was dissolved in ethanol (7 mL) and hydrazine hydrate (0.267 g, 5.34 mmol) was added dropwise at 0° C. The reaction mixture was stirred at room temperature for 1.5 h. The reaction mixture was concentrated under reduced pressure to give 0.9 g of the crude product, which was used without further purification in the following step. Crude yield 90%. 1H NMR (400 MHz, CDCl3) δ 9.79 (s, 1H), 4.43-4.48 (m, 2H), 3.56-3.61 (m, 4H), 3.40-3.48 (m, 4H). LCMS m/z 174.16 [M+H]+, tR=2.031 min.

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure

Sources & evidence

ORD record
ord-3c605cc2acd445fdb7413a7885cbf035
Source dataset
uspto-grants-2016_02
Patent number
US09266843B2

Reaction notes

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