Potassium Hydroxide → 9,9-Dimethyl-10-[5-methyl-1-(5-methyl-1-pyrrolin-2-YL)-2-pyrrolin-2-YL]acridan

HRID 267917

Reaktionsgleichung

Reaktionsgleichung von HRID 267917
CC1NC(=O)CC1.P(Cl)(Cl)(Cl)=O.CC1(C)C2C=CC=CC=2NC2C1=CC=CC=2.[OH-].[K+].Cl.[CH3:32][C:33]1([CH3:59])[C:46]2[CH:45]=[CH:44][CH:43]=[CH:42][C:41]=2[N:40]([C:47]2[N:48]([C:53]3[CH2:57][CH2:56][CH:55]([CH3:58])[N:54]=3)[CH:49]([CH3:52])[CH2:50][CH:51]=2)[C:39]2[C:34]1=[CH:35][CH:36]=[CH:37][CH:38]=2>ClCCCl>[CH3:59][C:33]1([CH3:32])[C:46]2[CH:45]=[CH:44][CH:43]=[CH:42][C:41]=2[N:40]([C:47]2[N:48]([C:53]3[CH2:57][CH2:56][CH:55]([CH3:58])[N:54]=3)[CH:49]([CH3:52])[CH2:50][CH:51]=2)[C:39]2[C:34]1=[CH:35][CH:36]=[CH:37][CH:38]=2

Komponenten

7

Edukt 5

HCID 14797Potassium HydroxideHCID 226479,9-Dimethyl-9,10-dihydroacridineHCID 24813Phosphorus oxychlorideHCID 660555-Methyl-2-pyrrolidoneHCID 203071649,9-Dimethyl-10-[5-methyl-1-(5-methyl-1-pyrrolin-2-YL)-2-pyrrolin-2-YL]acridan hydrochloride

Produkt 1

HCID 127994009,9-Dimethyl-10-[5-methyl-1-(5-methyl-1-pyrrolin-2-YL)-2-pyrrolin-2-YL]acridanAusbeute 35 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 111,2-DichloroethaneLösungsmittel

Versuchsvorschrift

A mixture of 5-methyl-2-pyrrolidinone (2.0 g., 0.02 mole) and phosphorus oxychloride (3.0 g., 0.02 mole) in 15 ml. of 1,2-dichloroethane after standing 15 hr. at room temperature is combined with 9,9-dimethylacridan (2.1 g., 0.01 mole) after a 48 hr. period is added to 30 ml. of 5N potassium hydroxide and 30 g. of crushed ice. The 1,2-dichloroethane fraction is separated, extracted with 50 ml. of 1.5N hydrochloric acid and 50 ml. of water and dried over magnesium sulfate. Concentration of the 1,2-dichloroethane solution provides a residue which is stirred with 100 ml. of ether and filtered. The filter cake containing crude hydrochloride salt of the product is stirred with sodium hydroxide solution affording the free base. Crystallization from n-heptane provides 1.3 g. (35% yield) of 9,9-DIMETHYL-10-[5-METHYL-1-(5-METHYL-1-PYRROLIN-2-YL)-2-PYRROLIN-2-YL]ACRIDAN, m.p. 135°-139° C. from which the hydrochloride salt is prepared according to the procedure of Example 1. Analytically pure 9,9-DIMETHYL-10-[5-METHYL-1-(5-METHYL-1 -PYRROLIN-2-YL)-2-PYRROLIN-2-YL]ACRIDAN HYDROCHLORIDE, from acetone-ether, has a melting point of 247.5°-248.0° C. (corr.).

Aufarbeitung

  1. additionperiod is added to 30 ml
  2. customThe 1,2-dichloroethane fraction is separated
  3. extractionextracted with 50 ml
  4. dry with materialof water and dried over magnesium sulfate
  5. customConcentration of the 1,2-dichloroethane solution provides a residue which
  6. filtrationof ether and filtered
  7. additionThe filter cake containing crude hydrochloride salt of the product
  8. stirringis stirred with sodium hydroxide solution
  9. customaffording the free base
  10. customCrystallization from n-heptane
  11. customprovides 1.3 g

Quellen und Nachweise

ORD-Eintrag
ord-8dc6e2392f35482f976259e0a8a9a04c
Quelldatensatz
uspto-grants-1976_03
Patentnummer
US03946004

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