Diketene → 1-(1,3-Dioxobutyl)pyrrolidine

HRID 1055242

Reaktionsgleichung

Reaktionsgleichung von HRID 1055242
[NH:1]1[CH2:5][CH2:4][CH2:3][CH2:2]1.[CH2:6]=[C:7]1[O:11][C:9](=[O:10])[CH2:8]1>O1CCCC1>[N:1]1([C:9](=[O:10])[CH2:8][C:7](=[O:11])[CH3:6])[CH2:5][CH2:4][CH2:3][CH2:2]1

Komponenten

4

Edukt 2

HCID 12661DiketeneHCID 31268Pyrrolidine

Produkt 1

HCID 1007221-(1,3-Dioxobutyl)pyrrolidineAusbeute 81 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

A solution of 21 ml (0.25 mol) of pyrrolidine in 50 ml tetrahydrofuran was added dropwise to a solution of 20 g of diketene (0.24 mol) in 200 ml tetrahydrofuran at −5 to 0° C. After 1 h stirring at 0° C. no more starting material was detected by thin layer chromatography. The reaction mixture was evaporated and the residue was purified by column chromatography. This gave 29.9 g (0.19 mol, 81% yield) of an oil.

Aufarbeitung

  1. customThe reaction mixture was evaporated
  2. customthe residue was purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-ec1e43e93ef64b4d883e00360b6ccd1c
Quelldatensatz
uspto-grants-2016_07
Patentnummer
US09394324B2

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