Oxidative synthesis of quinazolinones and benzothiadiazine 1,1-dioxides from 2-aminobenzamide and 2-aminobenzenesulfonamide with benzyl alcohols and aldehydes
An interesting procedure for the zinc-catalyzed oxidative transformation of ready available 2-aminobenzamide, 2-aminobenzenesulfonamide with benzyl alcohols has been developed. Various quinazolinones and benzothiadiazine 1,1-dioxides were prepared in moderate to good yields under identical conditions. The reactions of both aromatic aldehydes and aliphatic aldehydes with 2-aminobenzamide under catalyst free conditions were described as well. In water media, the products were formed in good yields.
Direct synthesis of quinazolinones by acceptorless dehydrogenative coupling of o-aminobenzamide and alcohols by heterogeneous Pt catalysts
作者:S. M. A. Hakim Siddiki、Kenichi Kon、Abeda Sultana Touchy、Ken-ichi Shimizu
DOI:10.1039/c4cy00092g
日期:——
metal nanoclusters (Pt/HBEA) effectively catalyze direct dehydrogenative synthesis of quinazolinones from o-aminobenzamide and alcohols under promoter-free conditions. This is the first heterogeneous catalytic system for this reaction, which has a turnover number (TON) more than 25 times higher than previous homogeneous catalysts as well as wide scope for aliphatic and aromatic alcohols.
Synthesis of quinazolinones from anthranilamides and aldehydes via metal-free aerobic oxidation in DMSO
作者:Na Yeun Kim、Cheol-Hong Cheon
DOI:10.1016/j.tetlet.2014.02.065
日期:2014.4
A highly environmentally benign protocol for the synthesis of quinazolinones from anthranilamides and aldehydes via aerobicoxidation was developed in wet DMSO. This protocol is operationally simple, exhibits broad substrate scope, and does not need toxic metal catalysts and bases. In addition, the utility of this transformation was further demonstrated by converting the resulting quinazolinones into
申请人:Korea University Research and Business Foundation 고려대학교 산학협력단(220040170680) BRN ▼209-82-08298
公开号:KR101580821B1
公开(公告)日:2015-12-30
본 발명은 금속과 염기가 배제된 디메틸설폭사이드(dimethylsulfoxid, DMSO) 용매하에서 산소원를 산화제로 사용하는 호기성 산화법을 이용하여 퀴나졸리논 유도체를 제조하는 방법에 관한 것으로, 본 발명에 따른 퀴나졸리논 유도체의 제조방법은 팔라듐이나 이리듐 등과 같은 금속촉매를 필요로 하지 않아 잔존하는 금속에 의한 독성문제가 없으며, 강한 산 또는 염기조건, 저온 반응 및 무수조건의 반응과 같은 까다로운 공정을 필요로 하지 않으며, 별도의 정제공정을 필요로 하지 않아 경제적이고, 간단하게 안트라닐아미드 유도체와 알데히드원을 반응시켜 퀴나졸리논 유도체를 도입할 수 있다.
Synergistic catalysis on Fe–N<sub>x</sub> sites and Fe nanoparticles for efficient synthesis of quinolines and quinazolinones <i>via</i> oxidative coupling of amines and aldehydes
作者:Zhiming Ma、Tao Song、Youzhu Yuan、Yong Yang
DOI:10.1039/c9sc04060a
日期:——
this paper, we developed a reusable heterogeneous non-precious iron nanocomposite comprising metallic Fe-Fe3C nanoparticles and Fe-N x sites on N-doped porous carbon, which allows for highly efficient synthesis of quinolines and quinazolinones via oxidativecoupling of amines and aldehydes using H2O2 as the oxidant in aqueous solution under mild conditions. A set of quinazolines and quinazolinones
在本文中,我们开发了一种可重复使用的异质非贵铁纳米复合材料,包含金属 Fe-Fe3C 纳米颗粒和 N 掺杂多孔碳上的 Fe-N x 位点,可通过胺和醛的氧化偶联高效合成喹啉和喹唑啉酮在温和条件下以H2O2为氧化剂水溶液。以高产率合成了一系列喹唑啉和喹唑啉酮类化合物,具有广泛的底物范围和良好的官能团耐受性。表征和控制实验表明,金属 Fe 纳米粒子和内置 Fe-N x 位点之间的协同效应是其出色催化性能的主要原因。此外,铁纳米复合材料可以很容易地回收以供连续使用,而催化活性和选择性没有明显损失。这项工作提供了一种方便且可持续的方法来获取药学相关的 N-杂环。