An initial study has been accomplished into the synthetic feasibility of the preparation of diarylcarbenium salt via the direct coupling of aryl (or heteroaryl) aldehydes and arenes (or heteroaryl analogues) in the presence of a strong organic Brønsted acid. A number of stabilized aryl or heteroaryl(3-indolyl)carbenium ions, never previously prepared in the solid state, have been isolated in excellent
A Curtius-like rearrangement of hydroxamates to isocyanates was discovered. This reaction was initiated from an iron(II)–nitrenoid complex, which was generated by the iron(II)-catalyzed cleavage of N–O bonds of functionalized hydroxamates. To demonstrate the efficiency of this new Curtius-like rearrangement in synthetic chemistry, a biomimetic strategy for the one-pot preparation of bisindolylmethanes
Photocatalytic Redox-Neutral Approach to Diarylmethanes
作者:Guozhe Guo、Yong Yuan、Xiazhen Bao、Xuehui Cao、Tongzhi Sang、Jiayuan Wang、Congde Huo
DOI:10.1021/acs.orglett.1c02523
日期:2021.9.3
reaction of indole-3-acetic acid NHPI esters with indoles using a Ru photosensitizer to deliver a wide range of symmetrical and unsymmetrical 3,3′-bisindolylmethane derivatives. Furthermore, the reaction is readily adapted to the preparation of a wide variety of diarylmethane derivatives.
Photocatalytic Redox‐Neutral Synthesis of Heterotriarymethanes
作者:Guozhe Guo、Youwan Ye、Xiazhen Bao、Yong Yuan、Congde Huo
DOI:10.1002/adsc.202300752
日期:2023.10.24
strategy for the synthesis of a broad range of bis(indolyl)-substituted and mono(indolyl)-substituted hetero-triarylmethanes. Moreover, this synthetic approach has been expanded to the construction of indole-substituted triarylmethanes bearing all-carbon quaternarystereocenters. It is noteworthy that the preparation of the natural product Arsindolin A was effectively achieved using this methodology