Solution-Dimerization of 4-Aryl-1,4-dihy
β
Andreas Hilgeroth; Ute Baumeister; Frank W. Heinemann
π
Article
π
2000
π
John Wiley and Sons
π
English
β 320 KB
π 1 views
On irradiation at Ξ» Υ 270 nm solutions of 4-aryl-1,4-Irradiation with filtered light (Ξ» ΟΎ 313 nm) leads to syn and anti dimers 4 and 3 in nearly equal yields. The poor yields of dihydropyridines 1 yield cage dimers 2 as the main products beside small amounts of anti dimers 3. 1 H-NMR data and X-anti