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Volumn 19, Issue 12, 2001, Pages 1225-1231

Asymmetric Catalytic Epoxidation of Enones by Chiral Binaphthol-derived Lanthanum Catalyst

Author keywords

(S) 6,6 diphenyl BINOL; Asymmetric epoxidation; Chiral lanthanum catalyst

Indexed keywords

1 NAPHTHOL; 6,6' DIPHENYLBINAPHTHOL LANTHANUM COMPLEX; ALKENE DERIVATIVE; BINAPHTHOL; CHALCONE; EPOXIDE; EPOXYCHALCONE; KETONE; LANTHANUM; LIGAND; SOLVENT; UNCLASSIFIED DRUG;

EID: 0037742583     PISSN: 1001604X     EISSN: None     Source Type: Journal    
DOI: 10.1002/cjoc.20010191211     Document Type: Article
Times cited : (11)

References (22)
  • 20
    • 1042298323 scopus 로고    scopus 로고
    • note
    • We have examined the effect of mole ratio of (S)-3:La, and found that almost 1:1 gave the best results: 0.5:1, 83.2% yield, 56.0% ee; 1:1, 90.5% yield, 86.1% ee; 1.5:1, 66.3% yield, 85.8% ee; 2:1, 55.7% yield, 85.5% ee.
  • 21
    • 1042286635 scopus 로고    scopus 로고
    • note
    • We also investigated the effect of stirring time of forming catalyst on the results, and found that stirring 12 h gave the better results. For examples: 1 h, 85.6% yields, 81.8% ee; 3 h, 87.7% yields, 83.2% ee; 5h, 89.1% yields, 85.5% ee; 7 h, 89. 1% yields, 85.5% ee; 90.5% yields, 86.1% ee; 15h, 90.3%, 86.2% ee.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.