Pyridine → Ethyl 5-(4-(((9H-fluoren-9-yl)methoxy)carbonylamino)phenylthio)-4-nitrothiophene-2-carboxylate

HRID 883994ノート

反応式

HRID 883994 の反応式
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][C:9]2[S:13][C:12]([C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:11][C:10]=2[N+:19]([O-:21])=[O:20])=[CH:4][CH:3]=1.[CH:22]1[C:34]2[CH:33]([CH2:35][O:36][C:37](Cl)=[O:38])[C:32]3[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=3)[C:26]=2[CH:25]=[CH:24][CH:23]=1.N1C=CC=CC=1>C(Cl)Cl>[CH:22]1[C:34]2[CH:33]([CH2:35][O:36][C:37]([NH:1][C:2]3[CH:3]=[CH:4][C:5]([S:8][C:9]4[S:13][C:12]([C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:11][C:10]=4[N+:19]([O-:21])=[O:20])=[CH:6][CH:7]=3)=[O:38])[C:32]3[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=3)[C:26]=2[CH:25]=[CH:24][CH:23]=1

参加物

5

反応物 3

HCID 1049PyridineHCID 343679-Fluorenylmethyl chloroformateHCID 67040833Ethyl 5-(4-aminophenylthio)-4-nitrothiophene-2-carboxylate

生成物 1

HCID 67040709Ethyl 5-(4-(((9H-fluoren-9-yl)methoxy)carbonylamino)phenylthio)-4-nitrothiophene-2-carboxylate収率 100%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

A suspension of the product of Example 90B (0.500 g, 1.541 mmol) and 9-fluorenylmethoxycarbonyl chloride (0.478 g, 1.849 mmol) in methylene chloride (10 mL) under a nitrogen atmosphere was treated with pyridine (0.25 mL, 3.083 mmol), and the resulting solution stirred for 18 hours at room temperature. The reaction was diluted with methylene chloride (50 mL) and washed with 1N aqueous HCl (50 mL) then water (50 mL). The organic was dried over magnesium sulfate, filtered, and concentrated by rotary evaporation. Purification by silica gel flash chromatography eluting with methylene chloride afforded the title compound as a bright yellow solid (0.842 g, quantitative). 1H NMR (300 MHz, DMSO-D6) δ ppm 1.23 (t, J=7.17 Hz, 3 H) 4.24 (q, J=7.23 Hz, 2 H) 4.35 (t, J=6.43 Hz, 1 H) 4.57 (d, J=6.25 Hz, 2 H) 7.29-7.50 (m, 4 H) 7.69 (s, 4 H) 7.77 (d, J=7.35 Hz, 2 H) 7.92 (d, J=7.35 Hz, 2 H) 8.11 (s, 1 H) 10.15 (s, 1 H); MS (ESI+) m/z 564 (M+NH4)+, 569 (M+Na)+.

後処理

  1. washwashed with 1N aqueous HCl (50 mL)
  2. dry with materialThe organic was dried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated by rotary evaporation
  5. customPurification by silica gel flash chromatography
  6. washeluting with methylene chloride

出典と根拠

ORDレコード
ord-88311f469165444a8f779f74aab77f7d
出典データセット
uspto-grants-2012_08
特許番号
US08236950B2

反応ノート

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