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Volumn 48, Issue 8, 2007, Pages 1479-1483

A versatile solid-phase synthesis of 3-aryl-1,2,4-oxadiazolones and analogues

Author keywords

Acidic heterocycles; Attachment; Cleavage; Mitsunobu reaction; Solid phase; Sonogashira coupling

Indexed keywords

3 PHENYL 4H [1,2,4]OXADIAZOL 5 ONE; 3 PHENYL 4H [1,2,4]OXADIAZOL 5 THIONE; 4 PHENYL 3H [1,2,3,5]OXATHIADIAZOLE 2 OXIDE; 5 PHENYL 1H TETRAZOLE; BENZOIC ACID DERIVATIVE; OXADIAZOLE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 33846416892     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.12.050     Document Type: Article
Times cited : (17)

References (28)
  • 7
    • 33846412059 scopus 로고    scopus 로고
    • Boschelli, D. H.; Connor, D. T. U.S. Patent 5,114,958, May 19, 1992.
  • 21
    • 33846434650 scopus 로고    scopus 로고
    • note
    • Same results were obtained for heterocycle 9.
  • 22
    • 33846461529 scopus 로고    scopus 로고
    • note
    • Mitsunobu conditions have been reported once to yield in solution phase a mixture of O- and N4-alkylated products. See Ref. 10. Only N4-alkylation is obtained using alkyl halides as electrophiles.
  • 23
    • 33846433340 scopus 로고    scopus 로고
    • Same results were obtained for heterocycle 9.
  • 24
    • 33846435532 scopus 로고    scopus 로고
    • Increasing percentage of TFA in DCM did not allow the release the N4-alkylated 1,2,4-oxadiazol-5-one heterocycle.
  • 26
    • 33846451950 scopus 로고    scopus 로고
    • Moderate yields reflect that only O-anchored product can be cleaved from solid support.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.