Carbon tetrabromide → HCID 11531974、化合物

HRID 1785828ノート

反応式

HRID 1785828 の反応式
[CH:1]([C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:14]=[CH:13][C:12]([C:15]([O:17][CH3:18])=[O:16])=[CH:11][CH:10]=2)=[C:5]([O:19][CH3:20])[CH:4]=1)=O.[C:21](Br)(Br)([Br:23])[Br:22].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>ClCCl>[Br:22][C:21]([Br:23])=[CH:1][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:14]=[CH:13][C:12]([C:15]([O:17][CH3:18])=[O:16])=[CH:11][CH:10]=2)=[C:5]([O:19][CH3:20])[CH:4]=1

参加物

5

反応物 3

HCID 11205Carbon tetrabromideHCID 11776TriphenylphosphineHCID 11558086Methyl 4'-formyl-2'-methoxy[1,1'-biphenyl]-4-carboxylate

生成物 1

HCID 11531974HCID 11531974、化合物

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

A solution of Example 122I (1.35 g, 5.0 mmol) in dichloromethane (30 mL) at room temperature was treated with carbon tetrabromide (1.82 g, 5.5 mmol) and triphenylphosphine (2.88 g, 11 mmol), stirred for 1 hour, treated with hexanes (50mL), and filtered through silica gel (50 g). The solution was rinsed with 1:1 water/dichloromethane, separated, and the organic phase was concentrated. The concentrate was purified by flash column chromatography on silica gel with 2-10% ethyl acetate/hexanes to provide the desired product.

後処理

  1. filtrationfiltered through silica gel (50 g)
  2. washThe solution was rinsed with 1:1 water/dichloromethane
  3. customseparated
  4. concentrationthe organic phase was concentrated
  5. customThe concentrate was purified by flash column chromatography on silica gel with 2-10% ethyl acetate/hexanes

出典と根拠

ORDレコード
ord-b627c3997b554b2fa53731c8b4ac21bc
出典データセット
uspto-grants-2009_03
特許番号
US07504512B2

反応ノート

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