Pd(II)/Cu(II)-Catalyzed Regio- and Stereoselective Synthesis of (<i>E</i>)-3-Arylmethyleneisoindolin-1-ones Using Air as the Terminal Oxidant
作者:So Won Youn、Tae Yun Ko、Young Ho Kim、Yun Ah Kim
DOI:10.1021/acs.orglett.8b03409
日期:2018.12.21
Regio- and stereoselective synthesis of (E)-3-arylmethyleneisoindolin-1-ones via Pd(II)/Cu(II)-catalyzedone-pot C–C/C–N bond forming sequence between amides and styrenes is reported. This method provides facile and rapid access to a diverse range of such compounds using readily available starting materials under mild aerobic conditions with good functional group tolerance and high selectivity and efficiency
<scp>Pd‐Catalyzed</scp>
Asymmetric Synthesis of 3,
<scp>4‐Dihydroisoquinolinones</scp>
From
<scp>
<i>N</i>
‐Ts‐Benzamides
</scp>
and 1,
<scp>3‐Dienes</scp>
作者:Tae Kyun Kim、So Won Youn
DOI:10.1002/bkcs.12227
日期:2021.3
A Pd(II)‐catalyzed asymmetric oxidative annulation of N‐Ts‐benzamides with 1,3‐dienes using a chiral pyridine‐oxazoline‐type ligand for the regio‐ and stereoselective synthesis of chiral 3,4‐dihydroisoquinolinones has been developed.
N-Sulfonyl acetylketenimine as a highly reactive intermediate for synthesis of N-Aroylsulfonamides
作者:Weiguang Yang、Dayun Huang、Xiaobao Zeng、Jianlan Zhang、Xinyan Wang、Yuefei Hu
DOI:10.1016/j.tet.2018.12.005
日期:2019.1
A highlyreactiveintermediate N-sulfonyl acetylketenimine was generated from an ynone-participated CuAAC/ring-opening method. Its unique structure allowed it to react with aryl carboxylic acids to give N-aroylsulfonamides via a novel Mumm-type rearrangement.
Controllable construction of isoquinolinedione and isocoumarin scaffolds <i>via</i> Rh<sup>III</sup>-catalyzed C–H annulation of <i>N</i>-tosylbenzamides with diazo compounds
An efficient protocol for the synthesis of isoquinolinediones by RhIII-catalyzed C–H activation/annulation/decarboxylation of N-tosylbenzamides with diazo compounds is reported.
Ruthenium(II) oxidase catalysis by direct dioxygen‐coupled turnover enabled step‐economical oxidative CH alkenylation reactions at ambient pressure. Versatile ruthenium(II) biscarboxylate catalysts displayed ample substrate scope and proved applicable to weaklycoordinating and removable directing groups. The twofold CH functionalization strategy was characterized by exceedingly mild reaction conditions