Hydroxylation and Amination of Azulenes by Vicarious Nucleophilic Substitution of Hydrogen
作者:Mıˇeczysław Makosza、Renata Podraza
DOI:10.1002/(sici)1099-0690(200001)2000:1<193::aid-ejoc193>3.0.co;2-w
日期:2000.1
electron-withdrawing substituents in the five-membered ring. Similarly, VNS amination of azulenes proceeds with 4-amino-1,2,4-triazole; its anion, being an active nucleophile, also reacts with unsubstituted azulene. A variety of transformations of 6-hydroxyazulenes, such as substitution of the corresponding sulfonates with nitrogen, oxygen, sulfur, carbon nucleophiles and halogens, and the Claisen rearrangement
当 5 元环中含有吸电子取代基时,菘烯与叔丁基过氧化氢在 6 位有效地进行羟基化。类似地,通过 4-氨基-1,2,4-三唑对芘进行 VNS 胺化;它的阴离子是一种活性亲核试剂,也与未取代的薁烯反应。报道了 6-羟基甘菊烯的各种转化,例如用氮、氧、硫、碳亲核试剂和卤素取代相应的磺酸盐,以及烯丙基醚的克莱森重排。