Dimethylformamide → 2,6-Diisopropyl-4-bromobenzaldehyde

HRID 338210ノート

反応式

HRID 338210 の反応式
I[C:2]1[C:7]([CH:8]([CH3:10])[CH3:9])=[CH:6][C:5]([Br:11])=[CH:4][C:3]=1[CH:12]([CH3:14])[CH3:13].[Li]CCCC.CN([CH:23]=[O:24])C>C1(C)C=CC=CC=1>[CH:12]([C:3]1[CH:4]=[C:5]([Br:11])[CH:6]=[C:7]([CH:8]([CH3:10])[CH3:9])[C:2]=1[CH:23]=[O:24])([CH3:14])[CH3:13]

参加物

5

反応物 3

HCID 6228DimethylformamideHCID 574376675-Bromo-2-iodo-1,3-diisopropylbenzeneHCID 178418339Butyllithium

生成物 1

HCID 574376682,6-Diisopropyl-4-bromobenzaldehyde

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒2 回

実験手順

A 150 mL of dry toluene solution of 1-iodo-2,6-diisopropyl-4-bromobenzene (17.6 g, 0.048 mol) was treated with n-BuLi (1.6 M in hexane, 75 mL) at −78° C. in 30 minutes. After stirring for 15 minutes, dry DMF (20 mL) in 50 mL of toluene was added dropwise. The resulting mixture was slowly warmed up to room temperature. After regular work up, the crude product was distilled at 140° C. under vacuum to afford 2,6-diisopropyl-4-bromobenzaldehyde (11.5 g).

後処理

  1. distillationAfter regular work up, the crude product was distilled at 140° C. under vacuum

出典と根拠

ORDレコード
ord-92f6288e6b3842dd9f76fc58992d3efd
出典データセット
uspto-grants-2014_11
特許番号
US08889864B2

反応ノート

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