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Volumn 48, Issue 45, 2007, Pages 8014-8017

Highly enantioselective and cis-diastereoselective cyclopropanation of olefins catalyzed by ruthenium complexes of (iminophosphoranyl)ferrocenes

Author keywords

(Iminophosphoranyl)ferrocenes; Asymmetric cyclopropanation; cis Diastereoselection; Ruthenium catalysts

Indexed keywords

DIAZOACETIC ACID ETHYL ESTER; FERROCENE DERIVATIVE; LIGAND; METAL; RUTHENIUM; RUTHENIUM COMPLEX; STYRENE;

EID: 35148831172     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.09.035     Document Type: Article
Times cited : (28)

References (50)
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  • 6
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    • (1999) Comprehensive Asymmetric Catalysis
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    • note
    • 2 in dichloroethane (10 mL). This solution was mixed with the olefin substrate (10 equiv). To the reaction mixture at 70 °C was added slowly α-ethyldiazoacetate (2.5 mmol) diluted in dichloroethane (10 mL) over a period of 15 h with a syringe pump. After the addition was complete, the solvent and excess olefin were removed under vacuum. The oily residue was passed through a short silica gel column and the products were collected. The diastereomeric excess (% de) was determined by GC equipped with CBP-10 on a Acme 6000E GC. The enationmetric excess (% ee) was determined by GC equipped with Chiraldex BPH on a Acme 6000E GC. The absolute configuration of enatiomer was determined by comparison of their specific rotation with previous reports.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.