title: N-Iodosuccinimide-Initiated Spirocyclopropanation of Styrenes with 1,3-Dicarbonyl Compound for the Synthesis of Spirocyclopropanes.
abstract: Herein is reported an N-iodosuccinimide-initiated spirocyclopropanation reaction of styrenes with 1,3-dicarbonyl compounds in the presence of white LED light. The reaction proceeds via two C-H and two C-I bond cleavage event, along with two C-C bond formation event, and formation of quaternary centers. These reactions could be carried out at room temperature and tolerated a wide range of substrates, resulting in good to excellent chemical yields. This developed radical reaction provides easy and practical access to spiro[2.4]heptane-4,7-dione derivatives.
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Qian
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China.
authors.forename: Bingnan
authors.initials: B
authors.lastname: Du
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China.
authors.forename: Ruichun
authors.initials: R
authors.lastname: Song
authors.affiliation: MaAnShan High-Tech Research Institute of Nanjing University , MaAnShan 238200, China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Wu
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China.
authors.forename: Haibo
authors.initials: H
authors.lastname: Mei
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China.
authors.forename: Jianlin
authors.initials: J
authors.lastname: Han
authors.affiliation: School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Pan