Beyond conventional routes, an unprecedented metal-free chemoselective synthesis of anthranilate esters via a multicomponent reaction (MCR) strategy
作者:Satavisha Sarkar、Abu T. Khan
DOI:10.1039/c5cc03369a
日期:——
A hitherto unreported route for the synthesis of anthranilate esters is demonstrated using 2-nitrobenzaldehyde, malonitrile and an alcohol or amine via a metal and oxidant free multicomponent reaction (MCR) strategy.
AgF-mediated Hofmann-type reaction of N-tosyl cyclic imides with silicate esters
作者:Qian Zhang、Yunbing Liu、Shijun Deng、Hongju Zhan、Lin Zhao、Dong Li
DOI:10.1016/j.tetlet.2023.154683
日期:2023.9
A facile and efficient AgF-mediated Hofmann-type reaction of N-tosyl cyclicimides with silicate esters was developed. The N-tosyl cyclicimides undergo a Hofmann-type rearrangement/alkoxylation reaction in which the silicate ester acted as the alkoxy source. This reaction proceeds under simple and mild conditions to generate a series of anthranilic acid-derived carbamates in moderate to good yields