1-硝基-2-萘与α-官能化酮及相关化合物的反应:脱羰2-取代萘[1,2- d ] [1,3]恶唑的意外形成
摘要:
1-亚硝基-2-萘与α-官能化酮如α-溴代,α-氯代,α-甲氧基,α-甲苯磺酰基和α-羟基酮之间的反应在碱性条件下产生了2-取代的萘并[一次合成操作中的1,2- d ] [1,3]恶唑。产物的形成伴随有α-官能化酮中C═O基团的意外损失。以芳基溴化物,烯丙基溴化物,α-溴二酮,α-溴氰化物,α-溴酸酯和α-溴酮酸酯为底物,还观察到了萘并[1,2- d ] [1,3]恶唑的形成。在回流下在1,2-二氯乙烷或乙腈中进行转化,得到相应的萘并恶唑,产率在52%至85%之间。
1,3-Dipolar cycloaddition of nitrosonaphthols to 3-aroylazindines. Novel syntheses of substituted naphtho[1,2-<i>d</i>]oxazoles and naphtho[2,1-<i>d</i>]oxazoles
作者:J. W. Lown、J. P. Moser
DOI:10.1139/v70-371
日期:1970.7.15
A series of 3-aroyl-2-arylaziridines underwent 1,3-dipolar cycloadditions in both orientations to the nitrogen–oxygen bond of 1-nitroso-2-naphthol. Spontaneous 1,3-cleavage of the intermediate oxadiazolidines to nitrones and cyclodehydration of the latter afforded both 2-aryl- and 2-aroylnaphtho-[1,2-d]oxazoles in good yields. The interpretation of the reaction received confirmation by independent
Microwave-induced 1,3-dipolar cycloaddition of 2-aroyl-aziridines
作者:Anima Boruah、Bipul Baruah、Dipak Prajapati、Jagir S. Sandhu、Anil C. Ghosh
DOI:10.1016/0040-4039(96)00795-2
日期:1996.6
2-Aroyl-aziridines react with a variety of multiple bonds under microwave irradiation in an Erlenmeyer flask at ambient pressure to give the corresponding cycloadducts in high yields within few minutes.