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author:

Xu, Jie (Xu, Jie.) [1] | Qiu, Weihua (Qiu, Weihua.) [2] | Zhang, Xu (Zhang, Xu.) [3] | Wu, Zhihan (Wu, Zhihan.) [4] | Zhang, Zhen (Zhang, Zhen.) [5] | Yang, Kai (Yang, Kai.) [6] (Scholars:杨凯) | Song, Qiuling (Song, Qiuling.) [7] (Scholars:宋秋玲)

Indexed by:

EI Scopus SCIE

Abstract:

The direct C-H functionalization of 1,2-benzazaborines, especially asymmetric version, remains a great challenge. Here we report a palladium-catalyzed enantioselective C-H olefination and allylation reactions of 1,2-benzazaborines. This asymmetric approach is a kinetic resolution (KR), providing various C-B axially chiral 2-aryl-1,2-benzazaborines and 3-substituted 2-aryl-1,2-benzazaborines in generally high yields with excellent enantioselectivities (selectivity (S) factor up to 354). The synthetic potential of this reaction is showcased by late-stage modification of complex molecules, scale-up reaction, and applications. A palladium-catalyzed enantioselective C-H olefination and allylation reactions of 1,2-benzazaborines was developed, which allows to achieve a kinetic resolution of 2-aryl-1,2-benzazaborines representing a straightforward route to construct C-B axial chirality. Two kinds of C-B axially chiral 2-aryl-1,2-benzazaborines are then readily diversified into a range of chiral intermediates, as well as transformed into potential chiral ligand.image

Keyword:

Axial Chirality Azaborine C-H Functionalization Kinetic Resolution Palladium

Community:

  • [ 1 ] [Xu, Jie]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Qiu, Weihua]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Zhang, Xu]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Wu, Zhihan]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Zhang, Zhen]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Yang, Kai]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 7 ] [Song, Qiuling]Fuzhou Univ, Fujian Prov Univ, Key Lab Mol Synth & Funct Discovery, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
  • [ 8 ] [Song, Qiuling]Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China

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Source :

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

ISSN: 1433-7851

Year: 2023

Issue: 47

Volume: 62

1 6 . 1

JCR@2023

1 6 . 1 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 7

SCOPUS Cited Count: 11

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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