Phthalimide → 2-(1-Benzyl-3-methoxymethylpyrrolidin-3-ylmethyl)isoindole-1,3-dione

HRID 10358

反応式

HRID 10358 の反応式
[CH2:1]([N:8]1[CH2:12][CH2:11][C:10]([CH2:16]O)([CH2:13][O:14][CH3:15])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[C:37]1(=[O:47])[NH:41][C:40](=[O:42])[C:39]2=[CH:43][CH:44]=[CH:45][CH:46]=[C:38]12.N(C(OCC)=O)=NC(OCC)=O>O1CCCC1>[CH2:1]([N:8]1[CH2:12][CH2:11][C:10]([CH2:16][N:41]2[C:37](=[O:47])[C:38]3[C:39](=[CH:43][CH:44]=[CH:45][CH:46]=3)[C:40]2=[O:42])([CH2:13][O:14][CH3:15])[CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 6809PhthalimideHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 21979083(1-Benzyl-3-methoxymethylpyrrolidin-3-yl)methanol

生成物 1

HCID 578326372-(1-Benzyl-3-methoxymethylpyrrolidin-3-ylmethyl)isoindole-1,3-dione収率 21.9%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A solution of (1-benzyl-3-methoxymethylpyrrolidin-3-yl)methanol (Example A19, 1.71 g, 7.27 mmol), triphenylphosphine (2.16 g, 8.22 mmol), phthalimide (1.14 g, 7.73 mmol), and anhydrous tetrahydrofuran is cooled to 0° C. and treated with diethyl azodicarboxylate (1.62 g, 9.31 mmol). The resulting mixture is stirred at room temperature for 18 hours and concentrated under vacuum. The residue is purified by flash column chromatography (1:5 ethyl acetate/hexanes) to afford the title compound, (0.58 g) as a solid. 1H NMR (200 MHz, CDCl3): δ 7.91–7.80 (m, 2H), 7.78–7.66 (m, 2H), 7.39–7.11 (m, 5H), 3.95–3.72 (m, 2H), 3.65–3.40 (m, 2H), 3.31 (s, 2H), 3.27 (s, 3H), 2.72–2.34 (m, 4H), 2.02–1.82 (m, 1H), 1.76–1.56 (m, 1H). MS ES: m/z 365 (MH+).

後処理

  1. customis cooled to 0° C.
  2. concentrationconcentrated under vacuum
  3. customThe residue is purified by flash column chromatography (1:5 ethyl acetate/hexanes)

出典と根拠

ORDレコード
ord-7817712f962644f282f5a64037189394
出典データセット
uspto-grants-2006_08
特許番号
US07094780B1

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