Diisopropylethylamine → 5-Iodo-2-tritylisoindoline

HRID 710282

反応式

HRID 710282 の反応式
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([I:9])=[CH:5][C:4]=1[CH2:10]Br.[C:12]([NH2:31])([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.C(N(CC)C(C)C)(C)C>CN(C=O)C>[I:9][C:6]1[CH:5]=[C:4]2[C:3](=[CH:8][CH:7]=1)[CH2:2][N:31]([C:12]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)([C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1)[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1)[CH2:10]2

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 138598TritylamineHCID 667267221,2-Bis(bromomethyl)-4-iodobenzene

生成物 1

HCID 667262485-Iodo-2-tritylisoindoline収率 48%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
60 °C

実験手順

A mixture of the product of Step B (0.34 g; 0.87 mmol) hydrochloride salt of tritylamine (0.22 g; 0.87 mmol) and N,N-diisopropylethylamine (DIPEA) (0.49 ml; 2.8 mmol) in anhydrous DMF (3 ml) was stirred for 2 h at 60° C. under N2. After removing the solvent in vacuo, the residue was diluted to 15 ml with ethyl acetate (EtOAc) and washed with, H2O, brine and dried over anhydrous MgSO4 and filtered. The filtrate was evaporated to dryness under reduced pressure and the residue was purified by FCC (SiO2; hexane/EtOAc, 8:2) to give pure title compound (0.2 g; 48%) as colourless heavy syrup. 1H-NMR (CDCl3) 3.86 (s, 2H); 3.87 (s, 2H); 6.81-7.57 (m, 18H).

後処理

  1. customAfter removing the solvent in vacuo
  2. additionthe residue was diluted to 15 ml with ethyl acetate (EtOAc)
  3. washwashed with, H2O, brine
  4. dry with materialdried over anhydrous MgSO4
  5. filtrationfiltered
  6. customThe filtrate was evaporated to dryness under reduced pressure
  7. customthe residue was purified by FCC (SiO2; hexane/EtOAc, 8:2)

出典と根拠

ORDレコード
ord-2b25a432ae864e688dac041a97b72a02
出典データセット
uspto-grants-2015_11
特許番号
US09181182B2

関連ノート

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