216759-95-4Relevant articles and documents
Bridging of resorcin[4]arenes in the chair conformation to cavitands having two pairs of axial and equatorial substituents
Middel, Oskar,Verboom, Willem,Hulst, Ron,Kooijman, Huub,Spek, Anthony L.,Reinhoudt, David N.
, p. 8259 - 8265 (2007/10/03)
Cavitands 18-22 were prepared in 29-90% yield by bridging of the chair- methylresorcin[4]arenes 3-7 with bromochloromethane. According to X-ray analysis of cavitand 19 and 1-D and 2-D NMR spectroscopy for 18, the cavitands possess a stereochemistry with t