Organocatalytic cycloaddition of alkynylindoles with azonaphthalenes for atroposelective construction of indole-based biaryls.
Organocatalytic cycloaddition of alkynylindoles with azonaphthalenes for atroposelective construction of indole-based biaryls.
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炔基吲哚与偶氮萘的有机催化环加成用于选择性构建吲哚基联芳基化合物
DOI:
10.1038/s41467-022-28211-0
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发表时间:
2022-02-02
影响因子:
16.6
通讯作者:
Zhou L
中科院分区:
文献类型:
--
作者:
Yang H;Sun HR;He RQ;Yu L;Hu W;Chen J;Yang S;Zhang GG;Zhou L
The axially chiral indole-aryl motifs are present in natural products and biologically active compounds as well as in chiral ligands. Atroposelective indole formation is an efficient method to construct indole-based biaryls. We report herein the result of a chiral phosphoric acid catalyzed asymmetric cycloaddition of 3-alkynylindoles with azonaphthalenes. A class of indole-based biaryls were prepared efficiently with excellent yields and enantioselectivities (up to 98% yield, 99% ee). Control experiment and DFT calculations illustrate a possible mechanism in which the reaction proceeds via a dearomatization of indole to generate an allene-iminium intermediate, followed by an intramolecular aza-Michael addition. This approach provides a convergent synthetic strategy for enantioselective construction of axially chiral heterobiaryl backbones. There is great interest in methods for catalytic enantioselective construction of axially chiral compounds found in natural products. Here, the authors develop a cycloaddition strategy for atroposelective construction of indole-based biaryls via chiral phosphoric acid-catalysed cycloaddition.
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影响因子:
16.6
作者:
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通讯作者:
Shi, Feng
影响因子:
21.8
作者:
Jolliffe, John D.;Armstrong, Roly J.;Smith, Martin D.
通讯作者:
Smith, Martin D.
影响因子:
16.6
作者:
Lotter, Dominik;Neuburger, Markus;Sparr, Christof
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Sparr, Christof
影响因子:
15
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Guo, Qi-Xiang;Wu, Zhi-Jun;Gong, Liu-Zhu
通讯作者:
Gong, Liu-Zhu
影响因子:
16.6
作者:
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通讯作者:
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