The manners of aromatization of a new 10-membered ring 1,6-diyn-3-ene system under basic conditions
摘要:
Treatment of a novel 10-membered ring 1,6-diyn-3-ene compound 1 with alcoholic KOH solution gave isothiochromanol derivatives through a polar pathway. On the other hand, treatment of 1 with DBU in CCl4 afforded 8-chloro-isothiochromane derivatives through a free radical pathway.