Diazomethane → HCID 20356176、化合物

HRID 371742ノート

反応式

HRID 371742 の反応式
[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]

参加物

4

実験手順

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.

後処理

  1. customthe residue crystallized from ethyl acetate-methanol

出典と根拠

ORDレコード
ord-2839e573a54141379294f4875d5834c4
出典データセット
uspto-grants-1978_05
特許番号
US04087539

反応ノート

読み込み中…