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).
One-pot synthesis of 2,3-dihydro-2-thioxoquinazolin-4(1H)-ones from nitro-compounds with the aid of tin(II) chloride
作者:Man-Man Wang、Guo-Lan Dou、Da-Qing Shi
DOI:10.1002/jhet.392
日期:——
A facile synthetic method using SnCl2·2H2O system to promote the novel reductive cyclization of 2‐nitrobenzamides and isothiocyanates is described. Sequentially, a series of 2,3‐dihydro‐2‐thioxoquinazolin‐4(1H)‐ones were synthesized in good yields. J. Heterocyclic Chem., (2010).