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Volumn 71, Issue 18, 2006, Pages 6863-6871

Synthesis of 2,3,6,8-tetrasubstituted chromone scaffolds

Author keywords

[No Author keywords available]

Indexed keywords

ALKYLATION; BROMINE COMPOUNDS; DERIVATIVES; POLYPEPTIDES; REACTION KINETICS; SUBSTITUTION REACTIONS; SYNTHESIS (CHEMICAL);

EID: 33750452718     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo061008f     Document Type: Article
Times cited : (56)

References (58)
  • 50
    • 33750431181 scopus 로고    scopus 로고
    • note
    • The previously reported syntheses of 28 and 37 were not repeated with microwave heating due to previously satisfying yields using thermal heating.
  • 53
    • 33750492086 scopus 로고    scopus 로고
    • note
    • 4 salt which is more stable and easier to handle than the phosphine itself. This phosphine is activated when base is added.
  • 54
    • 33750478500 scopus 로고    scopus 로고
    • note
    • Compound 55 could easily be deacetylated using NaOMe in MeOH to obtain 58 in excellent yield (>98%).
  • 55
    • 33750493434 scopus 로고    scopus 로고
    • note
    • Deprotection of the phthalimide group in 37 was performed using ethylenediamine in refluxing ethanol for 5 h. The primary amine was not isolated but instead reacted with di-tert-butyl dicarbonate in MeOH/THF at reflux for 14 h to obtain the Boc-protected amine 52 (87%).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.