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Volumn 3, Issue 3, 2001, Pages 389-392

A New Polymer-Anchored Chiral Catalyst for Asymmetric Michael Addition Reactions

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Indexed keywords

ARTICLE;

EID: 0002445366     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol006898e     Document Type: Article
Times cited : (118)

References (35)
  • 21
    • 0442270500 scopus 로고    scopus 로고
    • note
    • To a cooled solution of vinyl benzylamine (5 mmol) in 2 mL of methanol was added (R)-(+)-styrene epoxide (10 mmol) in 4 mL of methanol at 0°C and stirred for 1 h. It was then refluxed for 4 h. After completion of the reaction, the solvent was then removed under reduced pressure to give a syrupy mass which upon column chromatography (alumina) using ethyl acetate:hexane (10:90) as eluent gave the product (yield 30%).
  • 22
    • 0442302061 scopus 로고    scopus 로고
    • note
    • To 1 mol of (R,R)-3-aza-3-(p-vinylben/yl)-1,5-diphenyl-1,5-dihydroxypentane were added 1 mol of divinylbenzene and 4 mol of styrene in the presence of 10 mg of benzoyl peroxide, and it was sealed in a nitrogen atmosphere. Then the reaction mixture was heated at 70°C for 48 h.
  • 31
    • 0442286113 scopus 로고    scopus 로고
    • note
    • 4. Removal of the solvent under reduced pressure gave a syrupy mass, which upon flash column chromatography gave the product.
  • 35
    • 0442302051 scopus 로고    scopus 로고
    • note
    • + as the enolate, thus reducing the number of active chiral catalyst centers.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.