852806-19-0Relevant articles and documents
Synthesis of novel calixarenes having a tweezer-type structure
Okada, Yukihiro,Yoshida, Masashi,Nishimura, Jun
, p. 3261 - 3263 (2007/10/03)
Monobromide was used as the starting material. The [2+2]photocycloaddition of diolefins directly gave all the calix[4]arene regioisomers having chiral and achiral structures in 20-47% yields. They formed a complex with alkali metal ions and extracted large metal picrates rather than small ones.