Water → 2-[2-(2-Methyl-1-oxopropyl)-1H-pyrrol-1-yl]-1H-isoindole-1,3(2H)dione

HRID 327842

反応式

HRID 327842 の反応式
[C:1](Cl)(=[O:5])[CH:2]([CH3:4])[CH3:3].[Sn](Cl)(Cl)(Cl)Cl.[N:12]1([N:17]2[C:25](=[O:26])[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[C:18]2=[O:27])[CH:16]=[CH:15][CH:14]=[CH:13]1.O>C(Cl)Cl>[CH3:3][CH:2]([CH3:4])[C:1]([C:13]1[N:12]([N:17]2[C:25](=[O:26])[C:24]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[C:18]2=[O:27])[CH:16]=[CH:15][CH:14]=1)=[O:5]

参加物

6

反応物 4

HCID 962WaterHCID 24287Tin tetrachlorideHCID 62325Isobutyryl chlorideHCID 8537192-(1H-Pyrrol-1-yl)isoindoline-1,3-dione

生成物 1

HCID 199732002-[2-(2-Methyl-1-oxopropyl)-1H-pyrrol-1-yl]-1H-isoindole-1,3(2H)dione

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a stirred solution of isobutyryl chloride (5.4 ml) in DCM (250 ml) was added tin (IV) chloride (5.8 ml) at -10° C. under nitrogen. After stirring for 15 minutes in the cooling bath, 2-(1H-pyrrol-1-yl)-1H-isoindole-1,3(2H)dione (10.0 g) was added portion-wise. The reaction mixture was allowed to warm to room temperature, and stir for three days, at which time it was poured into cold water. The layers were separated and the organic phase was washed twice with water, once with 5% HCl (aq.), and subsequently dried (MgSO4). Filtration and concentration gave the crude product. Purification via preparative HPLC (silica gel, DCM) afforded 2.5 g of the product as a solid, m.p. 147°-149° C.

後処理

  1. additionwas added portion-wise
  2. customThe layers were separated
  3. washthe organic phase was washed twice with water, once with 5% HCl (aq.)
  4. dry with materialsubsequently dried (MgSO4)
  5. filtrationFiltration and concentration
  6. customgave the crude product
  7. customPurification via preparative HPLC (silica gel, DCM)

出典と根拠

ORDレコード
ord-4596beb64d1d4249969e62ff0627142b
出典データセット
uspto-grants-1993_12
特許番号
US05274116

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