Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles

Abstract The construction of N–N axially chiral motifs is an important research topic, owing to their wide occurrence in natural products, pharmaceuticals and chiral ligands. One efficient method is the atroposelective dihydropyrimidin-4-one formation. We present herein a direct catalytic synthesis...

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Main Authors: Shao-Jie Wang, Xia Wang, Xiaolan Xin, Shulei Zhang, Hui Yang, Ming Wah Wong, Shenci Lu
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-44743-z
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author Shao-Jie Wang
Xia Wang
Xiaolan Xin
Shulei Zhang
Hui Yang
Ming Wah Wong
Shenci Lu
author_facet Shao-Jie Wang
Xia Wang
Xiaolan Xin
Shulei Zhang
Hui Yang
Ming Wah Wong
Shenci Lu
author_sort Shao-Jie Wang
collection DOAJ
description Abstract The construction of N–N axially chiral motifs is an important research topic, owing to their wide occurrence in natural products, pharmaceuticals and chiral ligands. One efficient method is the atroposelective dihydropyrimidin-4-one formation. We present herein a direct catalytic synthesis of N–N atropisomers with simultaneous creation of contiguous axial and central chirality by oxidative NHC (N-heterocyclic carbenes) catalyzed (3 + 3) cycloaddition. Using our method, we are able to synthesize structurally diverse N–N axially chiral pyrroles and indoles with vicinal central chirality or bearing a 2,3-dihydropyrimidin-4-one moiety in moderate to good yields and excellent enantioselectivities. Further synthetic transformations of the obtained axially chiral pyrroles and indoles derivative products are demonstrated. The reaction mechanism and the origin of enantioselectivity are understood through DFT calculations.
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spelling doaj.art-cc54fadd8d13465093078b596b06c0762024-01-21T12:26:59ZengNature PortfolioNature Communications2041-17232024-01-0115111310.1038/s41467-024-44743-zOrganocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indolesShao-Jie Wang0Xia Wang1Xiaolan Xin2Shulei Zhang3Hui Yang4Ming Wah Wong5Shenci Lu6Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU)Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU)Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU)Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU)Department of Chemistry, National University of SingaporeDepartment of Chemistry, National University of SingaporeFrontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU)Abstract The construction of N–N axially chiral motifs is an important research topic, owing to their wide occurrence in natural products, pharmaceuticals and chiral ligands. One efficient method is the atroposelective dihydropyrimidin-4-one formation. We present herein a direct catalytic synthesis of N–N atropisomers with simultaneous creation of contiguous axial and central chirality by oxidative NHC (N-heterocyclic carbenes) catalyzed (3 + 3) cycloaddition. Using our method, we are able to synthesize structurally diverse N–N axially chiral pyrroles and indoles with vicinal central chirality or bearing a 2,3-dihydropyrimidin-4-one moiety in moderate to good yields and excellent enantioselectivities. Further synthetic transformations of the obtained axially chiral pyrroles and indoles derivative products are demonstrated. The reaction mechanism and the origin of enantioselectivity are understood through DFT calculations.https://doi.org/10.1038/s41467-024-44743-z
spellingShingle Shao-Jie Wang
Xia Wang
Xiaolan Xin
Shulei Zhang
Hui Yang
Ming Wah Wong
Shenci Lu
Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles
Nature Communications
title Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles
title_full Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles
title_fullStr Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles
title_full_unstemmed Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles
title_short Organocatalytic diastereo- and atroposelective construction of N–N axially chiral pyrroles and indoles
title_sort organocatalytic diastereo and atroposelective construction of n n axially chiral pyrroles and indoles
url https://doi.org/10.1038/s41467-024-44743-z
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