An efficient one-pot, three-component synthesis of vinyl sulfones via iodide-catalyzed radical alkenylation
摘要:
An efficient one-pot, three-component synthesis of vinyl sulfones via iodide-catalyzed radical alkenylation using aryl diazonium salts, terminal alkenes and DABSO is reported. This protocol offers good yields and tolerates a broad range of functional groups. Based on the extensive control experiments, we propose a plausible radical mechanism. (C) 2015 Elsevier Ltd. All rights reserved.
Extending Pummerer reaction chemistry. Examination of the prospects for forming vicinal quaternary carbon centers
作者:Ken S. Feldman、Ahmed Yimam Nuriye
DOI:10.1016/j.tetlet.2009.02.024
日期:2009.4
Pummerer chemistry applied to 2-sulfinyl indoles promotes oxidativecyclization of pendant nucleophiles to furnish C(3) spirocyclic indolenine products. Use of tetrasubstituted silylenolether nucleophiles in this transform yields spirocycles featuring vicinal all-carbon quaternary centers in two cases, but fails when a nearby amine can intervene.
Reaction of Arynes with Vinyl Sulfoxides: Highly Stereospecific Synthesis of <i>ortho</i>-Sulfinylaryl Vinyl Ethers
作者:Yuanming Li、Armido Studer
DOI:10.1021/acs.orglett.6b03827
日期:2017.2.3
The reaction of in situ generated arynes with aryl vinyl sulfoxides provides ortho-arylsulfinylaryl vinylethers via aryne σ-bond insertion into the S–O-bond and concomitant stereospecific S–O-vinyl migration. The cascade allows preparing di- or trisubstituted vinylethers with excellent stereospecificity. The reactions proceed under mild conditions, the substrate scope is broad, and the products obtained
[EN] CARBON MONOXIDE-RELEASING MOLECULES TRIGGERED BY PHYSIOLOGICAL STIMULI<br/>[FR] MOLÉCULES À LIBÉRATION DE MONOXYDE DE CARBONE DÉCLENCHÉE PAR DES STIMULI PHYSIOLOGIQUES
申请人:UNIV GEORGIA STATE RES FOUND
公开号:WO2019032879A1
公开(公告)日:2019-02-14
The present invention generally relates to carbon monoxide releasing compounds and compositions, and their use as carbon monoxide prodrugs.
本发明一般涉及一氧化碳释放化合物和组合物,以及它们作为一氧化碳前药的用途。
Pseudo-multicomponent 1,3-dipolar cycloaddition involving metal-free generation of unactivated azomethine ylides
作者:Asmaa Belabbes、María Gracia Retamosa、Francisco Foubelo、Ana Sirvent、Carmen Nájera、Miguel Yus、José M. Sansano
DOI:10.1039/d3ob00023k
日期:——
cycloadducts in very good yields with high diastereoselectivities. The relative configuration is determined by X-ray diffraction analysis of the chiral molecule, obtained as a single diastereoisomer, using a chiral maleimide. A brief study of the stability of the possible ylides involved in the process is also mentioned, confirming the high diastereoselectivity observed. The high functional group density
描述了炔丙胺、醛和缺电子烯烃之间的拟多组分反应。C-H 活化通过热发生,并允许以非常高的收率和高非对映选择性获得环加合物。相对构型通过手性分子的 X 射线衍射分析确定,使用手性马来酰亚胺作为单一非对映异构体获得。还提到了对该过程中可能涉及的叶立德的稳定性的简要研究,证实了观察到的高非对映选择性。这些环加合物的高官能团密度允许合成复杂的杂环。在吡咯烷氮原子烯丙基化或炔丙基化后,分别研究了与炔烃的 RCM-DA 环加成或环三聚化。在最后一个例子中,
An efficient one-pot, three-component synthesis of vinyl sulfones via iodide-catalyzed radical alkenylation
An efficient one-pot, three-component synthesis of vinyl sulfones via iodide-catalyzed radical alkenylation using aryl diazonium salts, terminal alkenes and DABSO is reported. This protocol offers good yields and tolerates a broad range of functional groups. Based on the extensive control experiments, we propose a plausible radical mechanism. (C) 2015 Elsevier Ltd. All rights reserved.