Quinazoline skeletons are synthesized by amino acid catabolism/reconstruction combined with the insertion/cyclization of dimethyl sulfoxide for the first time. The amino acid acts as a carbon and nitrogen source through HI-mediated catabolism and is then reconstructed using aromatic amines and dimethyl sulfoxide (DMSO) as a one-carbon synthon. This protocol is of great significance for the further
喹唑啉骨架是首次通过氨基酸分解代谢/重建结合二甲基亚砜的插入/环化合成。氨基酸通过 HI 介导的分解代谢充当碳和氮源,然后使用芳香胺和二甲基亚砜 (DMSO) 作为单碳合成子进行重建。该方案对进一步研究氨基酸转化具有重要意义。
NNN pincer Ru(II)-catalyzed dehydrogenative coupling of 2-aminoarylmethanols with nitriles for the construction of quinazolines
作者:Xiao-Min Wan、Zi-Lin Liu、Wan-Qing Liu、Xiao-Niu Cao、Xinju Zhu、Xue-Mei Zhao、Bing Song、Xin-Qi Hao、Guoji Liu
DOI:10.1016/j.tet.2019.03.046
日期:2019.5
Ru(II)-catalyzed preparation of quinazolines via acceptorless dehydrogenative strategy has been developed. Under the optimized conditions, a broad range of substituted o-aminobenzyl alcohols and (hetero)aryl or alkyl nitriles were well tolerated to afford various 2-substituted quinazolines in high yields. Subsequently, a set of control experiments have been performed to elucidate the reaction mechanism,