Hydrochloric Acid → 7-Benzoyl-3-methyl-3-(methylsulfanyl)-1,3-dihydro-2H-indol-2-one

HRID 2051868

Reaktionsgleichung

Reaktionsgleichung von HRID 2051868
[NH2:1][C:2]1[CH:15]=[CH:14][CH:13]=[CH:12][C:3]=1[C:4]([C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)=[O:5].C(OCl)(C)(C)C.[CH3:22][S:23][CH:24]([CH3:30])[C:25](OCC)=[O:26].C(N(CC)CC)C.Cl>C(Cl)Cl>[C:4]([C:3]1[CH:12]=[CH:13][CH:14]=[C:15]2[C:2]=1[NH:1][C:25](=[O:26])[C:24]2([CH3:30])[S:23][CH3:22])(=[O:5])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1

Komponenten

7

Versuchsvorschrift

A stirred solution of 3.94 g. (0.02 mole) of 2-amino-benzophenone in methylene chloride at -65° C. was treated with 2.16 g. (0.02 mole) of t-butylhypochlorite. After 15 min. 2.96 g. ethyl α-(methylthio)propionate was added dropwise and stirring continued for 1 hr. At the end of this time 2.02 g. of triethylamine (0.02 mole) was added dropwise and the reaction solution was allowed to warm to room temperature. This was followed by treatment with 1 N hydrochloric acid and stirred for 15 min. The methylene chloride solution was then separated and stripped under vacuum. The yellow oil residue was triturated with isopropyl ether and 3 g. of a yellow solid was filtered off (51%). Recrystallization from absolute ethanol gave a cream color solid, m.p. 135°-137° C.

Aufarbeitung

  1. waitcontinued for 1 hr
  2. stirringstirred for 15 min
  3. customThe methylene chloride solution was then separated
  4. customThe yellow oil residue was triturated with isopropyl ether and 3 g
  5. filtrationof a yellow solid was filtered off (51%)
  6. customRecrystallization from absolute ethanol
  7. customgave a cream color solid, m.p. 135°-137° C.

Quellen und Nachweise

ORD-Eintrag
ord-716342948613447b8563f4f3ca6cd9c9
Quelldatensatz
uspto-grants-1980_01
Patentnummer
US04182774

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