Ethyl Acetate → 2-[3-(3-Bromophenyl)-propyl]-2,3-dihydroisoindol-1-one

HRID 2427557노트

반응식

HRID 2427557 반응식
[Br:1][C:2]1[CH:3]=[C:4]([CH2:8][CH2:9][CH2:10][NH2:11])[CH:5]=[CH:6][CH:7]=1.C[O:13][C:14](=O)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[CH2:21]Br.C([O-])([O-])=O.[K+].[K+].C(OCC)(=O)C>C1(C)C=CC=CC=1>[Br:1][C:2]1[CH:3]=[C:4]([CH2:8][CH2:9][CH2:10][N:11]2[CH2:21][C:16]3[C:15](=[CH:20][CH:19]=[CH:18][CH:17]=3)[C:14]2=[O:13])[CH:5]=[CH:6][CH:7]=1

참가 물질

6

반응물 4

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 2734813Methyl 2-(bromomethyl)benzoateHCID 183675463-(3-Bromophenyl)propan-1-amine

생성물 1

HCID 579498072-[3-(3-Bromophenyl)-propyl]-2,3-dihydroisoindol-1-one수율 73%

시약·촉매·용매 1

HCID 1140Toluene용매

실험 절차

A mixture of 3-(3-bromophenyl)-propylamine (7.86 g, 36.7 mmol), 2-bromomethyl-benzoic acid methyl ester (8.45 g, 36.7 mmol), and K2CO3 (6.91 g, 50 mmol) in toluene (100 mL) was heated at reflux with stirring for 1.5 h. Workup and silica gel column chromatography using a gradient of hexanes to 50% ethyl acetate in hexanes afforded 2-[3-(3-bromophenyl)-propyl]-2,3-dihydroisoindol-1-one (8.81 g, 73%). GC/MS gave: m/z (rel.int.) 331 (M+, 10), 329 (M+, 10), 147-(100), 146 (72) 119 (25), and 91 (38). 1H NMR (300 MHz, CDCl3): δ 2.00 (dt, 2H), 2.67 (t, 2H), 3.67 (t, 2H), 4.36 (s, 2H), 7.14 (dd, 2H), 7.31 (m, 1H), 7.35 (br s, 1H), 7.45 (m, 2H), 7.51 (dt, 1H), 7.85 (d, 1H). 13C NMR (300 MHz, CDCl3): δ 29.9, 32.8, 42.0, 49.9, 122.4, 122.7, 123.6, 127.1, 128.0, 129.1, 130.0, 131.2, 131.3 132.8, 141.1, 143.7, 168.6.

후처리

  1. temperaturewas heated
  2. temperatureat reflux

출처 및 근거

ORD 기록
ord-fd85e45984fb44a7bf9fa405c00dac00
출처 데이터셋
uspto-grants-2011_06
특허 번호
US07968570B2

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