Diazomethane → HCID 20356176, Verbindung

HRID 371742Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 371742
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]([C:8]1[N:12]2[CH2:13][CH2:14][CH:15]([C:16]([OH:18])=[O:17])[C:11]2=[CH:10][CH:9]=1)=[O:7].[N+](=[CH2:21])=[N-]>ClCCl>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]([C:8]1[N:12]2[CH2:13][CH2:14][CH:15]([C:16]([O:18][CH3:21])=[O:17])[C:11]2=[CH:10][CH:9]=1)=[O:7]

Komponenten

4

Versuchsvorschrift

A solution of 200 mg. of 5-(2-furoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid in 5 ml. of dichloromethane is treated with an excess of ethereal diazomethane, and the reaction mixture is maintained at room temperature for 30 minutes. The solvents and excess reagent are eliminated under reduced pressure and the residue crystallized from ethyl acetate-methanol, to yield methyl 5-(2-furoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylate.

Aufarbeitung

  1. customthe residue crystallized from ethyl acetate-methanol

Quellen und Nachweise

ORD-Eintrag
ord-2839e573a54141379294f4875d5834c4
Quelldatensatz
uspto-grants-1978_05
Patentnummer
US04087539

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