Catalytic cyclopropanation and aziridination of alkenes by a Cu(I) complex of ferrocenyldiimine

Synlett

Volumn , Issue 6, 1998, Pages 617-618

  Cho, Dong Jei ^a   Jeon, Sang Jin ^a   Kim, Hong Seok ^a   Kim, Tae Jeong ^a  

^a Kyungpook National University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0003135185     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1998-1743     Document Type: Article

References (22)

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4. b) Doyle, M. P. "Asymmetric Cyclopropanation", In Catalytic Asymmetric Synthesis; Ojima, I., Ed.; VCH: New York, 1993; Chapter 3.
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20. -2 mmol) was dissolved in 10 mL of 1,2-dichloroethane, and 5 equiv of the olefin was added. Ethyl diazoacetate (2.6 mmol) was diluted in 10 mL of 1,2-dichloroethane and added slowly (5 h) with a syringe pump to the [Cu]-alkene mixture. After stirring for 5 additional hours at RT, solvent and excess olefin were removed under vacumn. A 95:5 hexane-EtOAc mixture was used for chromatography on silica gel to elute the products.
21. Yamada, Y.; Yamamoto, T.; Okawara, M. Chem. Lett. 1975, 361.
22. -1 mmol) was then added portionwise over 30 min. After stirring for 1-2 h at RT, the mixture was applied to a vacuum line to remove any volatiles. Column chromatography of the residue (4:1 hexane-EtOAc) led to the isolation of the products as white crystalline solids.