Tributylphosphine → 5-{4-(3-Methyl-5-phenylimidazo[5,4-b]pyridin-2-ylmethoxy)benzyl}-3-triphenylmethylthiazolidine-2,4-dione

HRID 55544Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 55544
[OH:1][CH2:2][C:3]1[N:4]([CH3:18])[C:5]2[C:10]([N:11]=1)=[CH:9][CH:8]=[C:7]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[N:6]=2.O[C:20]1[CH:52]=[CH:51][C:23]([CH2:24][CH:25]2[S:29][C:28](=[O:30])[N:27]([C:31]([C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=3)([C:38]3[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=3)[C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[C:26]2=[O:50])=[CH:22][CH:21]=1.C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>C1C=CC=CC=1>[CH3:18][N:4]1[C:5]2=[N:6][C:7]([C:12]3[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=3)=[CH:8][CH:9]=[C:10]2[N:11]=[C:3]1[CH2:2][O:1][C:20]1[CH:52]=[CH:51][C:23]([CH2:24][CH:25]2[S:29][C:28](=[O:30])[N:27]([C:31]([C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=3)([C:38]3[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=3)[C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[C:26]2=[O:50])=[CH:22][CH:21]=1

Komponenten

6

Edukt 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 28181265-(4-Hydroxybenzyl)-3-triphenylmethylthiazolidine-2,4-dioneHCID 108475892-Hydroxymethyl-3-methyl-5-phenylimidazo[5,4-b]pyridine

Produkt 1

HCID 107947135-{4-(3-Methyl-5-phenylimidazo[5,4-b]pyridin-2-ylmethoxy)benzyl}-3-triphenylmethylthiazolidine-2,4-dioneAusbeute 62,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 241BenzeneLösungsmittel

Versuchsvorschrift

A procedure similar to that described in Preparation 4 was repeated, except that 0.5 g of 2-hydroxymethyl-3-methyl-5-phenylimidazo[5,4-b]pyridine (prepared as described in Preparation 110), 0.97 g of 5-(4-hydroxybenzyl)-3-triphenylmethylthiazolidine-2,4-dione, 0.57 ml of tributylphosphine, 0.53 g of 1,1'-(azodicarbonyl)dipiperidine and 50 ml of benzene were used. After working up the product as described in Preparation 4, the resulting crude product was purified by column chromatography through silica gel, using a 1:1 by volume mixture of hexane and ethyl acetate as the eluent, to give 0.9 g of the title compound having Rf=0.26 (on silica gel thin layer chromatography using a 1:1 by volume mixture of ethyl acetate and hexane as the developing solvent).

Aufarbeitung

  1. customA procedure similar to that described in Preparation 4
  2. customas described in Preparation 4
  3. customthe resulting crude product was purified by column chromatography through silica gel
  4. additionby volume mixture of hexane and ethyl acetate as the eluent

Quellen und Nachweise

ORD-Eintrag
ord-264b4d780be04bb895d01709c48861bb
Quelldatensatz
uspto-grants-1997_04
Patentnummer
US05624935

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