Ha. Stefani et al., Seleno and telluro cyclofunctionalization of alpha,gamma-diallyl-beta ketoesters: Polysubstituted furan derivatives, SYN COMMUN, 29(20), 1999, pp. 3517-3531
Seleno- and telurocyclofunctionalized furan derivatives were prepared by re
action of phenylselenenyl bromide and p-methoxyphenyl tellurium trichloride
with alpha,gamma-diallyl-beta-ketoesters in good yield.