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Volumn 50, Issue 2, 2011, Pages 458-462

A highly para-selective copper(II)-catalyzed direct arylation of aniline and phenol derivatives

Author keywords

aromatic substitution; C H arylation; copper; hypervalent iodine; synthetic methods

Indexed keywords

AROMATIC GROUP; AROMATIC SUBSTITUTIONS; ARYLATIONS; COPPER (II); FRIEDEL-CRAFTS; FUNCTIONALIZATIONS; HYPERVALENT IODINE; META POSITIONS; PHENOL DERIVATIVES; SYNTHETIC METHODS;

EID: 78650891905     PISSN: 14337851     EISSN: 15213773     Source Type: Journal    
DOI: 10.1002/anie.201004703     Document Type: Article
Times cited : (296)

References (61)
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    • For recent reviews on metal-catalyzed C-H bond functionalization, see
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    • For a related C-H alkylation reaction, see
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    • For a review of ortho-selective palladium(II)-catalyzed arylations of acetanilide, see
    • For a review of ortho-selective palladium(II)-catalyzed arylations of acetanilide, see
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    • For examples of iterative C-H bond functionalization, see
    • For examples of iterative C-H bond functionalization, see
  • 47
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    • III catalytic cycle proceeding by electrophilic metalation as it is possible the reactions with and without copper proceed by different mechanisms. For examples of Cu(III)-aryl species, see
    • III catalytic cycle proceeding by electrophilic metalation as it is possible the reactions with and without copper proceed by different mechanisms. For examples of Cu(III)-aryl species, see
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    • Note
    • The arylation could foreseeably proceed by two possible pathways: attack of the electron-rich arene onto the nodal iodine atom of the diaryliodonium salt would form the trivalent iodine intermediate, followed by ligand coupling and rearomatization of the arene nucleophile to form the product; see Refs.-[18] and [19]. Interestingly, although this is a mechanism that is commonly adopted for heteroatom or anionic nucleophiles, the convention associated with reductive elimination should favor transfer of the sterically demanding mesityl group in all cases where the mixed aryl salts are utilized, see Ref.-[20]; however, in no case did we observe this. Therefore, an alternative mechanism may involve the electron-rich arene directly attacking the diaryliodonium salt through an ipso-substitution mechanism, with the desired product formed after rearomatization.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.