title: Synergistic effect of additives on cyclopropanation of olefins.
abstract: An efficient cyclopropanation of olefins with Zn(CH2I)2, a catalytic amount of CCl3CO2H, and 1,2-dimethoxyethane at room temperature is described. A wide variety of olefins, including acid-sensitive substrates, can be cyclopropanated in 71-99% yield.
authors.affiliation: Beijing National Laboratory of Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Donghao
authors.initials: D
authors.lastname: Cheng
authors.forename: Deshun
authors.initials: D
authors.lastname: Huang
authors.forename: Yian
authors.initials: Y
authors.lastname: Shi
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D003500:Cyclization; D003521:Cyclopropanes / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure
chemical_list: D000475:Alkenes; D003521:Cyclopropanes