Direct Chemoselective Synthesis of N-3-Substituted Pyrimidinones in a Microwave-Assisted Method
作者:Burgula Laxminarayana、Lal Mohan Kundu
DOI:10.1080/00397911.2015.1017770
日期:2015.6.3
chemoselective alkylation, benzylation, and arylation of C-5 and C-6 substituted pyrimidine nucleobases selectively at the N-3 position. The reactions were found to proceed, with high efficiency, without the requirement of solvent and were complete within 10–15 min of irradiation. The efficiency of the method was further improved by addition of a Lewis acid, which not only increases the yield significantly but
摘要 由于区域选择性和化学选择性较差,选择性合成 N-3 取代的嘧啶核碱基或嘧啶酮一直是一个挑战。在本文中,我们展示了选择性 N-3 取代的修饰嘧啶酮的一步、从头合成。我们开发了一种微波辅助方法,用于在 N-3 位置选择性地对 C-5 和 C-6 取代的嘧啶核碱基进行直接、化学选择性烷基化、苄基化和芳基化。发现反应以高效率进行,不需要溶剂,并在辐照后 10-15 分钟内完成。通过加入路易斯酸进一步提高了该方法的效率,不仅显着提高了产率,而且加快了反应速度。图形概要