dicyano-, tricyano-, and tetracyanoazulenes substituted on both rings via direct oxidative cyanation reaction is described. 1-Cyanoazulene or 1,3-dicyanoazulene treated with tetraethylammonium cyanide (Et 4 N + CN - ) and subsequently with DDQ or para-chloranil were transformed stepwise into the desired polycyano-substituted azulenes.
描述了通过直接氧化氰化反应合成在两个环上取代的二氰基、三氰基和四氰基薁。用氰化四乙基铵(Et 4 N + CN - )处理并随后用DDQ或对氯苯胺处理的1-氰基薁或1,3-二氰基薁被逐步转化为所需的多氰基取代的薁。