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One-pot synthesis of quinazoline-2,4(1H,3H)-diones and 2-thioxoquinazolinones with the aid of low-valent titanium reagent

✍ Scribed by Guo-Lan Dou; Man-Man Wang; Zhi-Bin Huang; Da-Qing Shi

Publisher
Journal of Heterocyclic Chemistry
Year
2009
Tongue
English
Weight
105 KB
Volume
46
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

magnified image

An efficient, convenient, one‐pot synthesis of 2,4(1__H__,3__H__)‐quinazolinediones and 2‐thioxoquinazolinones was accomplished in good yields via the novel reductive cyclization of ethyl 2‐nitrobenzoates with isocyanates or isothiocyanates mediated by TiCl~4~/Zn system. J. Heterocyclic Chem., (2009).

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