Triethylamine → 3,3-Dimethyl-1-[2-(6-phenylhexanoyl)-perhydropyridazinyl]pentane-1,2-dione

HRID 2228457ノート

反応式

HRID 2228457 の反応式
C(N([CH2:6][CH3:7])CC)C.ClC([O:11][CH2:12][CH:13]([CH3:15])C)=O.[CH3:16][C:17]([CH3:30])([CH2:28][CH3:29])[C:18](=[O:27])[C:19]([CH:21]1[CH2:26][CH2:25][CH2:24][NH:23][NH:22]1)=[O:20]>C(Cl)Cl>[CH3:16][C:17]([CH3:30])([CH2:28][CH3:29])[C:18](=[O:27])[C:19]([CH:21]1[CH2:26][CH2:25][CH2:24][NH:23][N:22]1[C:12](=[O:11])[CH2:13][CH2:15][CH2:24][CH2:25][CH2:26][C:7]1[CH:6]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[O:20]

参加物

5

反応物 3

HCID 8471TriethylamineHCID 62365Isobutyl chloroformateHCID 694178043,3-Dimethyl-1-perhydropyridazinylpentane-1,2-dione

生成物 1

HCID 184700683,3-Dimethyl-1-[2-(6-phenylhexanoyl)-perhydropyridazinyl]pentane-1,2-dione収率 103.5%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a solution of 5-phenylvalaric acid (0.2 g, 1.1 mmol) in 3 ml CH2Cl2 was added triethylamine (0.15 ml, 1.1 mmol), followed by isobutyl chloroformate (0.15 g, 1.1 mmol) at 0° C. After stirring for 5 minutes, a solution of 3,3-dimethyl-1-perhydropyridazinylpentane-1,2-dione (0.212 g, 1 mmol) in 1 ml CH2Cl2 was added. The reaction was gradually warmed up to room temperature. The crude material was subject to silica gel purification to yield final product as clear oil (0.20 g, 55%). Rf=0.58 (33% EtOAc/hexane). 1H NMR (CDCl3, 400 MHz): δ 0.89 (t, 3H, J=7.5); 1.24 (s, 6H); 1.37 (m, 2H); 1.68 (m, 6H); 1.74 (m, 4H); 2.23 (m, 2H); 2.62 (t, 2H, J=7.60); 2.80 (m, 2H); 4.53 (m, 2H); 7.21 (m, 5H). Anal. Calcd. for C23H24N2O3: C, 71.47; H, 8.87; N, 7.25. Found: C, 71.54; H, 8.80; N, 7.32.

後処理

  1. customThe crude material was subject to silica gel purification

出典と根拠

ORDレコード
ord-d19e15624d2d428fbe3c0acdcc27ce3c
出典データセット
uspto-grants-2002_07
特許番号
US06417189B1

反応ノート

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