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Volumn 47, Issue 20, 2006, Pages 3423-3426

Highly substituted indol-2-ones, quinoxalin-2-ones and benzodiazepin-2,5-diones via a new Ugi(4CR)-Pd assisted N-aryl amidation strategy

Author keywords

Combinatorial chemistry; Heterocycles; Palladium assisted intramolecular aryl amidation; Ugi reaction

Indexed keywords

BENZODIAZEPINE DERIVATIVE; INDOLE DERIVATIVE; LEAD; PALLADIUM; QUINOXALINE DERIVATIVE;

EID: 33646036709     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.03.069     Document Type: Article
Times cited : (72)

References (31)
  • 20
    • 33646018663 scopus 로고    scopus 로고
    • note
    • General procedure (GP1) for the synthesis of the Ugi-products 1a-n: aldehyde (3 mmol) and amine (3 mmol) were stirred in 5 mL trifluoroethanol for 1 h at room temperature. Then 3 mmol of acid and 3 mmol of isocyanide were added. The reaction mixture was stirred for 24-72 h at room temperature (or at 50 °C when using paraformaldehyde). Then, the solvent was evaporated and the crude product was purified by crystallization or chromatographic methods.
  • 21
    • 33646032771 scopus 로고    scopus 로고
    • note
    • 3 for benzylic isocyanides) were added and the mixture was stirred at 100 °C for 72-96 h. Then, 20 mL methylene chloride was added, the mixture was filtered and the organic layer was washed with brine and dried over magnesium sulfate. After evaporation of the solvent, the crude product was purified by crystallization or chromatographic methods.
  • 25
    • 33646056141 scopus 로고    scopus 로고
    • note
    • +{radical dot}.
  • 26
    • 33646073129 scopus 로고    scopus 로고
    • note
    • +.
  • 27
    • 33646050363 scopus 로고    scopus 로고
    • note
    • +.
  • 28
    • 33646024959 scopus 로고    scopus 로고
    • note
    • +.
  • 29
    • 33646025280 scopus 로고    scopus 로고
    • note
    • +.
  • 30
    • 33646073452 scopus 로고    scopus 로고
    • note
    • 2: C, 67.60; H, 4.61; N, 9.85. Found: C, 67.39; H, 4.63; N, 9.53.
  • 31
    • 33646061364 scopus 로고    scopus 로고
    • note
    • +.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.