One-pot synthesis of quinazoline-2,4(1<i>H</i>,3<i>H</i>)-diones and 2-thioxoquinazolinones with the aid of low-valent titanium reagent
作者:Guo-Lan Dou、Man-Man Wang、Zhi-Bin Huang、Da-Qing Shi
DOI:10.1002/jhet.121
日期:2009.7
An efficient, convenient, one-pot synthesis of 2,4(1H,3H)-quinazolinediones and 2-thioxoquinazolinones was accomplished in good yields via the novel reductive cyclization of ethyl 2-nitrobenzoates with isocyanates or isothiocyanates mediated by TiCl4/Zn system. J. Heterocyclic Chem., (2009).
通过用TiCl 4 /介导的异氰酸酯或异硫氰酸酯对2-硝基苯甲酸乙酯进行新颖的还原环化反应,可以高效,方便地一锅合成2,4(1 H,3 H)-喹唑啉二酮和2-硫代氧杂喹唑啉酮。锌系统。J.杂环化学,(2009)。