Efficient syntheses of 3H-azuleno[8,1-cd]pyridazines and their thermal and photochemical reactions
作者:Chi-Phi Wu、Rammohan Devulapally、Tsung-Chieh Li、Chien-Kuo Ku、Hsien-Chung Chung
DOI:10.1016/j.tetlet.2010.07.007
日期:2010.9
4-hydrazinylazulene-1-carboxylate (2) by p-toluenesulfonic acid-catalyzed imine formation and intramolecular cyclization followed by dehydrogenation using KOH/MeOH in one-pot operation. Thermal and photochemical reactions of azulenopyridazines 6 afforded 1-vinylazulenes 7 in good yields.
通过对甲苯磺酸催化的亚胺形成和分子内环化,然后使用KOH / MeOH脱氢进行一锅操作,由4-肼基azulene -1-羧酸乙酯(2)有效地合成了Azulenopyridazines 6。ule嗪并哒嗪6的热和光化学反应以良好的产率提供了1-乙烯基az嗪7。