Boron tribromide dichloromethane → (2-Benzyl-4,5-dimethyl-thiophen-3-yl)-(3-cyclopentyl-4-hydroxy-phenyl)-methanone

HRID 1280919ノート

反応式

HRID 1280919 の反応式
[CH2:1]([C:8]1[S:9][C:10]([CH3:29])=[C:11]([CH3:28])[C:12]=1[C:13]([C:15]1[CH:20]=[CH:19][C:18]([O:21]C)=[C:17]([CH:23]2[CH2:27][CH2:26][CH2:25][CH2:24]2)[CH:16]=1)=[O:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.B(Br)(Br)Br.C(Cl)Cl>C(Cl)Cl>[CH2:1]([C:8]1[S:9][C:10]([CH3:29])=[C:11]([CH3:28])[C:12]=1[C:13]([C:15]1[CH:20]=[CH:19][C:18]([OH:21])=[C:17]([CH:23]2[CH2:27][CH2:26][CH2:25][CH2:24]2)[CH:16]=1)=[O:14])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

4

反応物 2

HCID 22277759Boron tribromide dichloromethaneHCID 23445655HCID 23445655、化合物

生成物 1

HCID 23445667(2-Benzyl-4,5-dimethyl-thiophen-3-yl)-(3-cyclopentyl-4-hydroxy-phenyl)-methanone収率 19.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

The title compound was prepared according to the procedure in Example 5, step 3 using (2-benzyl-4,5-dimethyl-thiophen-3-yl)-(3-cyclopentyl-4-methoxy-phenyl)-methanone (3.32 g, 8.20 mmol) and 1M boron tribromide/CH2Cl2 (1.6 mL) in CH2Cl2. Purification on Biotage KP-Sil eluting with a 2, 5 & 10% EtOAc/hexane step gradient gave 0.63 g (18%) of the title compound. 1H NMR (DMSO-d6) δ consistent.

後処理

  1. customThe title compound was prepared
  2. customPurification on Biotage KP-Sil
  3. washeluting with a 2, 5 & 10% EtOAc/hexane step gradient

出典と根拠

ORDレコード
ord-5f6de0b31827496aab33d2ce4d38352d
出典データセット
uspto-grants-2002_09
特許番号
US06451845B1

反応ノート

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