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Volumn 61, Issue 22, 2005, Pages 5323-5349

The rapid preparation of 2-aminosulfonamide-1,3,4-oxadiazoles using polymer-supported reagents and microwave heating

Author keywords

Combinatorial chemistry; Microwave; Oxaziazole; Polymer supported reagents; Thiadiazole

Indexed keywords

1,3,4 OXADIAZOLE DERIVATIVE; HYDRAZINE DERIVATIVE; ISOCYANATE; POLYMER; REAGENT; THIADIAZOLE DERIVATIVE;

EID: 18844454506     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2005.03.062     Document Type: Article
Times cited : (123)

References (97)
  • 67
    • 18844436290 scopus 로고    scopus 로고
    • note
    • -1) available from Argonaut Technologies was used without further purification.
  • 68
    • 18844392121 scopus 로고    scopus 로고
    • note
    • For the pyridyl derivative (N; Fig. 2) a benzaldehyde functionalised resin (PS-benzaldehyde; polystyrene backbone 1-2% cross-linked with divinylbenzene available from Argonaut Technologies) was substituted for the sulfonic acid. Additionally, for the chloroalkyl containing isocyanate reactions the aminomethylpolystyrene was excluded from the scavenging process.
  • 69
    • 18844433397 scopus 로고    scopus 로고
    • note
    • A mono-mode single cavity microwave instrument with pressure and temperature sensing, and an integrated liquid handling robot (Emrys Synthesizer) was used for the library preparation and an Emrys optimizer EXP for investigative and early stage development work. Both machines are available from Personal Chemistry a subdivision of Biotage.
  • 70
    • 18844387990 scopus 로고    scopus 로고
    • note
    • N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide on polystyrene (EDC polymer bound) available from Aldrich cat. no. 09657 and N-ethyl-N′-(3- dimethylaminopropyl)carbodiimide on JandaJel both proved to be less effective for this cyclisation.
  • 73
    • 18844432377 scopus 로고    scopus 로고
    • note
    • Available from Varian Inc. named as Bond Elut solid phase extraction cartridges, SCX II ion exchange media.
  • 91


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.