180908-12-7Relevant articles and documents
Intramolecular formal [4+2] cycloaddition of 3-ethoxycyclobutanones and alkenes
Matsuo, Jun-Ichi,Sasaki, Shun,Hoshikawa, Takaya,Ishibashi, Hiroyuki
supporting information; experimental part, p. 934 - 936 (2010/06/12)
Intramolecular formal [4+2] cycloaddition between 3-ethoxycyclobutanones and a carbon-carbon double bond to the corresponding bicyclo[4.n.0]alkan-2-one derivatives proceeded effectively by using ethylaluminium dichloride. The Royal Society of Chemistry 20