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Volumn 64, Issue 45, 2008, Pages 10381-10387

Development of intermolecular additive free Pauson-Khand reactions for estrone E-ring extension using microwaves

Author keywords

Cycloaddition; Estrone; Microwave; Pauson Khand

Indexed keywords

ALKYNE DERIVATIVE; COBALT COMPLEX; CYCLOPENTENE DERIVATIVE; CYCLOPENTENONE DERIVATIVE; ESTRONE; NORBORNENE DERIVATIVE;

EID: 52049089459     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2008.08.066     Document Type: Article
Times cited : (16)

References (32)
  • 3
    • 52049113520 scopus 로고    scopus 로고
    • Representative PKR reviews:
    • Representative PKR reviews:
  • 14
    • 52049119118 scopus 로고    scopus 로고
    • note
    • Active charcoal must be suspended into solution in order to avoid tube explosion under MW irradiation.
  • 19
    • 52049113076 scopus 로고    scopus 로고
    • note
    • The gradual addition had no influence on the yields in corresponding reference experiments.
  • 21
    • 52049127106 scopus 로고    scopus 로고
    • note
    • The further increase of added alkynyl-cobalt complex and irradiation time improved still slightly the yields, but it led to laborious purification due to presence of large amounts of organocobalt species, whereas the addition of an uncomplexed alkyne equivalent raised yields up to 20% combined with the excess of added cobalt complex.
  • 22
    • 52049103430 scopus 로고    scopus 로고
    • note
    • Referee's remark: in the case of compound 1 charcoal promoting effect on the yields is minor and could be inside error limits.
  • 25
    • 52049086302 scopus 로고    scopus 로고
    • note
    • The X-ray scattering setup consisted of a sealed copper anode X-ray tube, a multilayer monochromator (Incoatec, Germany) and an image plate detector (MAR345, Mar Research, Germany). Cu Kα radiation with the wavelength of 1.542 Å was used.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.