Preparation of a resin-based chromium catalyst for effecting [6pi + 2pi] cycloaddition reactions.
[reaction: see text] A resin-based chromium catalyst for performing [6pi + 2pi] cycloaddition reactions has been prepared from chloromethylated polystyrene. The catalyst provides cycloadducts in yields comparable to the photochemical and thermal versions of these transformations, and the process is effective with a wide range of 6pi and 2pi reaction partners.
Rigby
J H
JH
Department of Chemistry, Wayne State University, Detroit, Michigan 48202-3489, USA. jhr@chem.wayne.edu
Kondratenko
M A
MA
Fiedler
C
C
D002384:Catalysis; D002857:Chromium / Q000737:chemistry*; D003500:Cyclization; D011137:Polystyrenes / Q000737:chemistry*
D011137:Polystyrenes; D002857:Chromium