Triethylamine → 6-Methoxy-3,4-dihydro-2H-1-benzopyran-4-ol

HRID 979470ノート

反応式

HRID 979470 の反応式
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[O:11][CH:10]=[CH:9][C:8](=[O:12])[C:7]=2[CH:13]=1.C(N(CC)CC)C>[Pd].C(O)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]2[O:11][CH2:10][CH2:9][CH:8]([OH:12])[C:7]=2[CH:13]=1

参加物

5

反応物 2

HCID 8471TriethylamineHCID 6888806-Methoxychromone

生成物 1

HCID 137128456-Methoxy-3,4-dihydro-2H-1-benzopyran-4-ol

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 702Ethanol溶媒

実験手順

A solution of 6-methoxy-4-benzopyranone (31.6 g), triethylamine (4.9 ml) and 10% palladium on carbon (3.16 g) in absolute ethanol (1.7 l) is stirred under an atmosphere of hydrogen for 19 hours. The reaction mixture is filtered and evaporated in vacuo yielding the desired hydrogenated product as a pale yellow liquid.

後処理

  1. filtrationThe reaction mixture is filtered
  2. customevaporated in vacuo

出典と根拠

ORDレコード
ord-287aa9c80bba47cabf3022a1720e4cb2
出典データセット
uspto-grants-1987_05
特許番号
US04668673

反応ノート

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