Sodium Bicarbonate → 1-Benzyl-3-[3-(naphthalene-1-sulfonylmethyl)-4-nitro-phenoxy]-pyrrolidine

HRID 1711393ノート

反応式

HRID 1711393 の反応式
[CH2:1]([N:8]1[CH2:12][CH2:11][CH:10]([O:13][C:14]2[CH:19]=[CH:18][C:17]([N+:20]([O-:22])=[O:21])=[CH:16][CH:15]=2)[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[CH2:24][S:25]([C:28]1[C:37]2[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=2)[CH:31]=[CH:30][CH:29]=1)(=[O:27])=[O:26].CC(C)([O-])C.[K+].C(=O)(O)[O-].[Na+]>C1COCC1.O>[CH2:1]([N:8]1[CH2:12][CH2:11][CH:10]([O:13][C:14]2[CH:15]=[CH:16][C:17]([N+:20]([O-:22])=[O:21])=[C:18]([CH2:24][S:25]([C:28]3[C:37]4[C:32](=[CH:33][CH:34]=[CH:35][CH:36]=4)[CH:31]=[CH:30][CH:29]=3)(=[O:26])=[O:27])[CH:19]=2)[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

7

反応物 4

HCID 516892Sodium BicarbonateHCID 117366081-((Chloromethyl)sulfonyl)naphthaleneHCID 23665647Potassium tert-butoxideHCID 588286261-Benzyl-3-(4-nitro-phenoxy)-pyrrolidine

生成物 1

HCID 588286161-Benzyl-3-[3-(naphthalene-1-sulfonylmethyl)-4-nitro-phenoxy]-pyrrolidine収率 47.1%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒2 回

実験手順

A solution of 1-benzyl-3-(4-nitro-phenoxy)-pyrrolidine (7.2 g, 24 mmol) and 1-chloromethanesulfonyl-naphthalene (5.8 g, 24 mmol) in THF was chilled in an ice bath, treated dropwise with 1.0 M potassium tert-butoxide in THF (55 mL, 55 mmol), stirred at ambient temperatures for 1 hour, 10 minutes, under nitrogen, poured into water, treated with solid sodium bicarbonate and extracted with ethyl acetate. The extracts were combined, washed with brine, dried over anhydrous magnesium sulfate and concentrated in vacuo. The resultant residue was purified by flash chromatography using 40-60% ethyl acetate in hexane to give 1-benzyl-3-[3-(naphthalene-1-sulfonylmethyl)-4-nitro-phenoxy]-pyrrolidine as a brown gum/foam, 5.7 g (47.1% yield), Mass spectrum (+EI, [M+H]+) m/z 503. 1HNMR (500 MHz, DMSO-d6): δ8.44-8.46 (m, 1H), 8.27 (d, 1H, J=8.30 Hz), 8.07-8.09 (m, 1H), 7.92-7.96 (m, 2H), 7.58-7.66 (m, 3H), 7.19-7.31 (m, 5H), 6.99 (dd, 1H, J=9.15 Hz and 2.81 Hz), 6.66 (d, 1H, J=2.81 Hz), 5.24 (d, 2H, J=2.20 Hz), 4.65-4.69 (m, 1H), 3.53 (s, 2H), 2.59-2.66 (m, 2H), 2.41-2.42 (m, 1H), 2.27-2.34 (m, 1H), 2.00-2.10 (m, 1H), 1.43-1.54 ppm (m, 1H).

後処理

  1. extractionextracted with ethyl acetate
  2. washwashed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe resultant residue was purified by flash chromatography

出典と根拠

ORDレコード
ord-de0ec44cd16143d7b2bf2de8f7f47d64
出典データセット
uspto-grants-2010_09
特許番号
US07790751B2

反応ノート

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