1-Alkyl-4-aryl-3,4-dihydro-2(1<i>H</i>)-quinazolinones and thiones. Synthesis and<sup>1</sup>H-NMR spectra
作者:William J. Houlihan、George Cooke、Max Denzer、Joseph Nicoletti
DOI:10.1002/jhet.5570190639
日期:1982.11
A series of 1-alkyl-4-aryl-3,4-dihydro-2(1H)-quinazolinones and thiones were prepared by a modification of the Pictet-Spengler reaction that involves treatment of an N-alkyl-N-arylurea or thiourea with an aryl aldehyde in the presence of methanesulfonic acid. The 1H-nmr spectra of several of these compounds gave rise to unusual OCH2O and isopropyl signals.
通过修饰Pictet-Spengler反应制备一系列的1-烷基-4-芳基-3,4-二氢-2(1 H)-喹唑啉酮和硫酮,其中涉及处理N-烷基-N-芳基脲或在甲磺酸存在下,将硫脲与芳基醛进行反应。这些化合物中的几种的1 H-nmr光谱引起异常的OCH 2 O和异丙基信号。