Benzyl mercaptan → 3-Benzylsulfanyl-3-(4-chlorophenyl)-2-propylisoindolin-1-one

HRID 2381571ノート

反応式

HRID 2381571 の反応式
Cl[C:2]1([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][CH:16]=2)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[N:3]1[CH2:12][CH2:13][CH3:14].[CH2:22]([SH:29])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C(OCC)(=O)C>CO>[CH2:22]([S:29][C:2]1([C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][CH:16]=2)[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[N:3]1[CH2:12][CH2:13][CH3:14])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

参加物

5

反応物 3

HCID 7509Benzyl mercaptan2 回HCID 8857Ethyl Acetate2 回HCID 513512563-Chloro-3-(4-chlorophenyl)-2-propylisoindolin-1-one

生成物 1

HCID 598247853-Benzylsulfanyl-3-(4-chlorophenyl)-2-propylisoindolin-1-one

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

Distilled THF was added to 3-chloro-3-(4-chlorophenyl)-2-propylisoindolin-1-one (1.06 g, 3.31 mmol) followed by benzyl mercaptan (0.855 mL, 7.29 mmol) as for general procedure C. On addition of the benzyl mercaptan, a pale pink precipitate formed which turned white over time. The ethyl acetate was mostly removed under vacuum. On leaving overnight in the fridge, clear crystals formed. The crude product was purified by flash column chromatography (20:80, EtOAc:petrol) and recrystallised in the minimum amount of hot ethyl acetate giving large colourless crystals of 3-benzylsulfanyl-3-(4-chlorophenyl)-2-propyl-2,3-dihydroisoindolin-1-one (918 mg, 2.25 mmol, 68%). Rf 0.68 (40:60 EtOAc:petrol). Mp. 131.5-133.4° C. λmax (CH3OH)/nm 223.0, Abs 0.964. IR: 3161, 2968, 1665, 1608, 1467, 1435, 1402 cm−1. 1H NMR (300 Hz, CDCl3); δ 0.72 (t, 3H, J=7.5 Hz, N(CH2)2—CH3), 1.37 (m, 1H, N—CH2—CH2—CH3), 1.57 (m, 1H, N—CH2—CH2—CH3), 2.80 (d, 1H, J=12 Hz, S—CH2), 3.10 (d, 1H, J=12 Hz, S—CH2), 3.17 (m, 1H, N—CH2), 3.36 (m, 1H, N—CH2), 6.92-7.81 (m, 13H, Ar). 13C NMR (75 Hz, CDCl3); 111.8 (N—(CH2)2—CH3), 21.5 (N—CH2—CH2), 33.4 (S—CH2), 42.6 (N—CH2), 78.2 (S—C—N), 123.2, 123.4, 127.3, 128.0, 128.5, 128.9, 128.9, 131.0, 132.8, 134.9, 135.8, 137.1, 148.3 (Ar), 167.9 (C═O). LC/MS-ES+ m/z 410.6, 408.7, 286.1, 287.1. Anal. Calcd. for C24H22ClNOS: C, 70.66; H, 5.44; N, 3.43%. Found C, 70.60; H, 5.51; N, 3.51%.

後処理

  1. distillationDistilled THF
  2. customa pale pink precipitate formed which
  3. customThe ethyl acetate was mostly removed under vacuum
  4. customOn leaving overnight in the fridge, clear crystals
  5. customformed
  6. customThe crude product was purified by flash column chromatography (20:80, EtOAc:petrol)

出典と根拠

ORDレコード
ord-8373fc4298f2490abbef401c88df0acb
出典データセット
uspto-grants-2012_09
特許番号
US08258175B2

反応ノート

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