Potassium Carbonate → (S)-3-(2-bromopyridine-3-yloxy)-2-methyl-1-propanol

反応式

[Br:1][C:2]1[C:7]([OH:8])=[CH:6][CH:5]=[CH:4][N:3]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:16][C@@H:17]([CH3:20])[CH2:18][OH:19]>CC(CC)=O>[Br:1][C:2]1[C:7]([O:8][CH2:16][C@@H:17]([CH3:20])[CH2:18][OH:19])=[CH:6][CH:5]=[CH:4][N:3]=1

参加物

反応条件

温度: 100 °C

実験手順

2-bromo-3-pyridinol (230 mg) and potassium carbonate (216 mg) was dissolved in methylethylketone (10 ml) and reacted for 30 minutes. Then, (S)-3-bromo-2-methyl-1-propanol (0.21 ml) was added to the solution and refluxed for 3 hours at 100° C. Potassium carbonate was filtered out and separated by flash chromatography under a silica gel phase (ethyl acetate:normal hexane=1:1). As a result, (S)-3-(2-bromopyridine-3-yloxy)-2-methyl-1-propanol (260 mg, yield: 80%) was obtained.

後処理

customreacted for 30 minutes
filtrationPotassium carbonate was filtered out
customseparated by flash chromatography under a silica gel phase (ethyl acetate:normal hexane=1:1)

出典と根拠

ORDレコード: ord-1d4369e11c0b4f37ad8dccad06fee476
出典データセット: uspto-grants-2005_09
DOI: 10.6084/m9.figshare.5104873.v1
特許番号: US06946558B2

反応ノート

読み込み中…

参加物

反応物 3

HCID 11430Potassium Carbonate

HCID 230702-Bromo-3-pyridinol

HCID 10986449(S)-(+)-3-Bromo-2-methyl-1-propanol

生成物 1

HCID 86595488(S)-3-(2-bromopyridine-3-yloxy)-2-methyl-1-propanol収率 80%

試薬・触媒・溶媒 1

HCID 6569Methyl Ethyl Ketone溶媒

反応条件

温度: 100 °C

実験手順

後処理

customreacted for 30 minutes
filtrationPotassium carbonate was filtered out
customseparated by flash chromatography under a silica gel phase (ethyl acetate:normal hexane=1:1)

出典と根拠

ORDレコード: ord-1d4369e11c0b4f37ad8dccad06fee476
出典データセット: uspto-grants-2005_09
DOI: 10.6084/m9.figshare.5104873.v1
特許番号: US06946558B2

反応ノート

読み込み中…