Synthesis of Chromeno[3,4-b]pyrrol-4(3H)-ones by Cyclocondensation of 1,3-Bis(trimethylsilyloxy)buta-1,3-dienes with 4-Chloro-3-nitrocoumarin

The reaction of 4-chloro-3-nitrocoumarin with 1,3-bis(silyloxy)buta-1,3-dienes and subsequent reductive cyclization provides a convenient synthesis of a variety of chromeno[3,4-b]pyrrol-4(3H)-ones.

Fatunsin O.; Iaroshenko V. O.; Dudkin S.; Shkoor M.; Volochnyuk D.; Gevorgyan A.; Langer P.
Synlett 2010, 10, 1533-1535
DOI: 10.1055/s-0029-1220068