描述了炔烃硝化螺环化的新方法。该方法涉及使用叔丁基醚(亚硝酸叔丁酯)与水作为硝基源和TEMPO [[2,2,6,6-四甲基哌啶-1-基]的自由基攻击途径引发的炔烃的氧化双官能化。)氧基]作为引发剂,和它代表氧化炔difunctionalization的一个新的例子经由形成ç N / C C键的的硝基烯烃组件容纳单元-螺环。
Palladium-Catalyzed Cross-Coupling of Electron-Poor Terminal Alkynes with Arylboronic Acids under Ligand-Free and Aerobic Conditions
作者:Ming-Bo Zhou、Wen-Ting Wei、Ye-Xiang Xie、Yong Lei、Jin-Heng Li
DOI:10.1021/jo101063p
日期:2010.8.20
Palladium-catalyzed cross-coupling reaction of terminal alkynes with arylboronicacids has been described. In the presence of Pd(OAc)2 and Ag2O, a variety of terminal alkynes, including electron-poor terminal alkynes, smoothly underwent the reaction with numerous boronic acids to afford the corresponding internal alkynes in moderate to good yields. Moreover, this methodology was applied to the synthesis
作者:Arango-Daza, Juan Camilo、Cabrero-Antonino, Jose R.、Adam, Rosa
DOI:10.1002/cssc.202400331
日期:——
A heterogeneously-catalysed oxidative aminocarbonylation of alkynes with aromatic and aliphaticamines has been developed for the first time. By using a [Pd/Mg3Al-LDH]-300(D) as a general and highly versatile nanocatalyst, composed by a partially dehydrated and dehydroxylated LDH basic matrix support together with homogeneously surface-distributed palladium metallic centers, more than 60 propiolamides
Metal-Free Oxidative <i>Ipso</i>-Carboacylation of Alkynes: Synthesis of 3-Acylspiro[4,5]trienones from <i>N</i>-Arylpropiolamides and Aldehydes
作者:Xuan-Hui Ouyang、Ren-Jie Song、Yang Li、Bang Liu、Jin-Heng Li
DOI:10.1021/jo5005982
日期:2014.5.16
A general and metal-free radical route to synthesis of 3-acylspiro[4,5]trienones is established that utilizes TBHP (tert-butyl hydrogenperwdde) as an oxidation and a reaction partner to trigger the oxidative ipso-carboacylation of N-arylpropiolamides with aldehydes. This method offers a new difunctionalization of alkynes through oxidative cross coupling of the aldehyde C(sp(2))-H bond with an ipso-aromatic carbon.
Sequential Intermolecular Aminopalladation/<i>ortho</i>-Arene C−H Activation Reactions of <i>N</i>-Phenylpropiolamides with Phthalimide
作者:Shi Tang、Peng、Shao-Feng Pi、Yun Liang、Nai-Xing Wang、Jin-Heng Li
DOI:10.1021/ol800080w
日期:2008.3.1
A novel palladium-catalyzed intermolecular aminopalladation/C-H activation method for selectively synthesizing (E)-(2-oxindolin-3-ylidene)phthalimides has been developed. In the presence of Pd(OAc)(2) and Phl(OAc)(2), alkynes were difunctionalized with a phthalimide and an arene Sp(2) C-H bond to selectively synthesize (E)-(2-oxoindolin-3-ylidene)phthalimides, which products are of great potential pharmaceutical value products in many major therapeutic areas, such as oncology, inflammation, neurology, immunology, and endocrinology. To the best of our knowledge, the reaction serves as the first example of intermolecular aminopalladation/C-H activation reactions of alkynes.