In this paper, a concise, open-vessel synthesis of 1-arylisoquinolines is described via HCl-mediated intermolecular cyclocondensation of oxygenated arylacetic acids with arylaldehydes in the presence of NH2OH and alcoholic solvents under mild and one-pot reaction conditions. A plausible mechanism is proposed and discussed herein. In the overall reaction process, only water was generated as the byproduct
Cascade Process for Direct Transformation of Aldehydes (RCHO) to Nitriles (RCN) Using Inorganic Reagents NH<sub>2</sub>OH/Na<sub>2</sub>CO<sub>3</sub>/SO<sub>2</sub>F<sub>2</sub> in DMSO
作者:Wan-Yin Fang、Hua-Li Qin
DOI:10.1021/acs.joc.8b03164
日期:2019.5.3
and practical process for direct conversion of aldehydes to nitriles was developed feathering a wide substrate scope and great functional group tolerability (52 examples, over 90% yield in most cases) using inorganic reagents (NH2OH/Na2CO3/SO2F2) in DMSO. This method allows for transformations of readily available, inexpensive, and abundant aldehydes to highly valuable nitriles in a pot, atom, and
使用无机试剂(NH 2 OH / Na 2 CO )开发了一种简单,温和且实用的方法,将醛直接转化为腈,可在较宽的底物范围内实现出色的官能团耐受性(52个实例,大多数情况下产率超过90%)3 / SO 2 F 2)在DMSO中。该方法允许以易用,原子和步经济的方式将易于获得,廉价且丰富的醛转化为高度有价值的腈,而无需过渡金属。该协议将作为将氰基部分安装到复杂分子的强大工具。
Discovery of Natural Rosin Derivatives Containing Oxime Ester Moieties as Potential Antifungal Agents to Control Tomato Gray Mold Caused by <i>Botrytis cinerea</i>
作者:Yanqing Gao、Renle Xu、Shihao Gu、Kun Chen、Jian Li、Xiaohua He、Shibin Shang、Zhanqian Song、Jie Song
DOI:10.1021/acs.jafc.2c01532
日期:2022.5.11
series of dehydroabietyl oximeesterderivatives were synthesized using rosin as a raw material. Based on the evaluation and screening of in vitro antifungalactivities against Botrytis cinerea (B. cinerea), Sclerotinia sclerotiorum, Valsa mali, Rhizoctonia solani, Fusarium oxysporum, and Alternaria alternata, compound 4f exhibited the best antifungalactivity against B. cinerea, and its EC50 was 0.798
The invention is directed to substituted thieno[2,3-b]pyrrolidin-5-ones. The compounds are useful as inhibitors of cellular production of tumor necrosis factor (TNF-&agr;) and as antiproliferative agents. These compounds are useful in the treatment or control of neuro-degenerative diseases, cardiovascular diseases, cancer or inflammatory diseases.
An unexpected involvement of ethyl-2-cyano-2-(hydroxyimino) acetate cleaved product in the promotion of the synthesis of nitriles from aldoximes: a mechanistic perception
While attempting to synthesize nitriles from aldoximes using O-sulfonate esters of oxyma [ethyl 2-cyano-2-(hydroxyimino)acetate], an unexpected involvement of oxyma cleaved product in promoting the synthesis of nitriles was observed. Such involvement of the oxyma cleaved product in the reaction mechanism, together with the usual anticipated pathway improved drastically the applicability of the method by reducing the time needed for the reaction to be completed over that of the sulfonyl chlorides. Other advantages of the present protocol are excellent yields in ambient and milder conditions. (C) 2013 Elsevier Ltd. All rights reserved.