Triethylamine → 2,2-dimethyl-3-(5'-nitro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-yl)-propionic acid methyl ester

HRID 1691859ノート

反応式

HRID 1691859 の反応式
[CH3:1][O:2][C:3](=[O:14])[C:4]([CH3:13])([CH3:12])[CH2:5][CH:6]1[CH2:11][CH2:10][NH:9][CH2:8][CH2:7]1.Cl[C:16]1[CH:21]=[CH:20][C:19]([N+:22]([O-:24])=[O:23])=[CH:18][N:17]=1.C(N(CC)CC)C>O1CCCC1>[CH3:1][O:2][C:3](=[O:14])[C:4]([CH3:12])([CH3:13])[CH2:5][CH:6]1[CH2:11][CH2:10][N:9]([C:16]2[CH:21]=[CH:20][C:19]([N+:22]([O-:24])=[O:23])=[CH:18][N:17]=2)[CH2:8][CH2:7]1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 783082-Chloro-5-nitropyridineHCID 592610232,2-Dimethyl-3-(piperidine-4-yl)-propionic acid methyl ester

生成物 1

HCID 667381462,2-dimethyl-3-(5'-nitro-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-yl)-propionic acid methyl ester収率 79.4%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
140 °C

実験手順

2,2-Dimethyl-3-(piperidine-4-yl)-propionic acid methyl ester (156 mg, 0.78 mmol) from above was mixed with 2-chloro-5-nitropyridine (124 mg, 0.78 mol) in tetrahydrofuran (2 mL) containing triethylamine (0.24 mL). The mixture was heated in a microwave at 140° C. for 30 minutes. The mixture was extracted with ethyl acetate and water. The organic layer was washed with brine and dried. Solvents were evaporated and the residue was triturated with ether to give 2,2-dimethyl-3-(5′-nitro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-yl)-propionic acid methyl ester (199 mg) as a crystalline material. The NMR spectrum obtained on the sample is compatible with its structure.

後処理

  1. extractionThe mixture was extracted with ethyl acetate and water
  2. washThe organic layer was washed with brine
  3. customdried
  4. customSolvents were evaporated
  5. customthe residue was triturated with ether

出典と根拠

ORDレコード
ord-a278824e42374e49afd9431c59f5ea77
出典データセット
uspto-grants-2012_04
特許番号
US08153644B2

反応ノート

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