Selectfluor-mediated regioselective nucleophilic functionalization of N-heterocycles under metal- and base-free conditions
作者:Long-Yong Xie、Jie Qu、Sha Peng、Kai-Jian Liu、Zheng Wang、Man-Hua Ding、Yi Wang、Zhong Cao、Wei-Min He
DOI:10.1039/c7gc03106h
日期:——
A facile, practical and environmentally attractive protocol for the direct diversification of N-heterocycles under ambient, metal- and base-free conditions was developed.
在常温、无金属和无碱条件下,开发了一种简便、实用且环境友好的直接多样化N-杂环的协议。
Regioselective preparation and NMR spectroscopy study of 2-chloro-4-ethoxy-quinoline for the synthesis of 2-((3-aminopropyl)amino)quinolin-4(1<i>H</i>
)-one
作者:Pedro Henrique Vasconcelos Vontobel、Rodrigo dos Santos Fuscaldo、Francisco Paulo dos Santos、Jessie Sobieski da Costa
DOI:10.1002/mrc.4980
日期:2020.4
distinction between the C2 and C4 ethoxylation products was achieved using 1 H-15 N HMBC. Compound 3 is an intermediate used for the synthesis of 2-((3-aminopropyl)amino)quinolin-4(1H)-one (5), which displays peculiar behavior during 1 H NMR analysis, such as the broadening of the H8 singlet and unexpected deuteration at the C8-position. Effort has been dedicated to understand these findings.