A new mode for the generation of o-xylylene by peri-selenium participation from 8,13-dihydrobenzo[g]naphtho[1,8-bc][1,5]diselenonin under irradiation
摘要:
A new cyclic bis-selenide containing benzylic methylene groups and a naphthalene ring, 8,13-dihydrobenzo[g]naphtho[1,8-bc] [1,5]diselenonin (1), was stable in the dark; however, the C-Se bond of 1 was readily cleaved to form o-xylylene (2) and naphtho[1,8-cd]-1,2-diselenole (3) under the scattered light in the laboratory. The o-xylylene generated from 1 under the scattered light or UV irradiation (254 nm) was trapped by several dienophiles.
A new cyclic bis-selenide containing benzylic methylene groups and a naphthalene ring, 8,13-dihydrobenzo[g]naphtho[1,8-bc] [1,5]diselenonin (1), was stable in the dark; however, the C-Se bond of 1 was readily cleaved to form o-xylylene (2) and naphtho[1,8-cd]-1,2-diselenole (3) under the scattered light in the laboratory. The o-xylylene generated from 1 under the scattered light or UV irradiation (254 nm) was trapped by several dienophiles.