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Volumn , Issue 18, 2006, Pages 3145-3149

Heck arylation of maleic anhydrides using arenediazonium tetrafluoroborates: Synthesis of mono- and diarylated maleic anhydrides and of the marine alkaloids prepolycitrin A and Polycitrin A

Author keywords

3,4 diarylmaleic anhydrides; Arenediazonium tetrafluoroborates; Fluorescent materials; Heck arylation; Polycitrin A

Indexed keywords

ALKALOID DERIVATIVE; BORIC ACID; MALEIC ANHYDRIDE; POLYCITRIN A; PREPOLYCITRIN A; UNCLASSIFIED DRUG;

EID: 33751281975     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2006-951524     Document Type: Article
Times cited : (44)

References (23)
  • 12
    • 0000600785 scopus 로고
    • For a review, see
    • (a) For a review, see: Rondestvedt, C. S. Org. React. 1976, 24, 225.
    • (1976) Org. React. , vol.24 , pp. 225
    • Rondestvedt, C.S.1
  • 16
    • 33751304399 scopus 로고    scopus 로고
    • note
    • (b) Unpublished results extending those reported in reacute;f. 10a.
  • 17
    • 33751274754 scopus 로고    scopus 로고
    • note
    • 3.
  • 18
    • 33751261574 scopus 로고    scopus 로고
    • note
    • Superstoichiometric amount of the arenediazonium salts (2 or 4 equiv) is not strictly required for the synthesis of the diarylated adducts. However, the use of excess of this reagent leads to shorter reaction times and higher yields.
  • 23
    • 33751280915 scopus 로고    scopus 로고
    • note
    • 2 in 3 mL of MeCN was added anisole (0.8 mL of a 0.1 M solution in MeCN) and 2,3-dihydrofuran (0.2 mL of a 0.1 M solution in MeCN). After 5 min, 49 mg of maleic anhydride (0.5 mmol), 123 mg of NaOAc (1.5 mmol) and 443 mg of 4-methoxybenzene-diazonium tetrafluoroborate (2 mmol) were added and the reaction mixture refluxed for 1 h. After cooling, the reaction mixture was diluted with 15 mL of EtOAc and filtered through a short pad of Celite®. The solvent was then evaporated in vacuo and the residue flash chromatographed (SiO2, hexane-EtOAc = 8:2) to provide 93 mg (60% yield) of the Heck adduct 3 as homogeneous material by TLC.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.