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Sequential Nucleophilic Aromatic Substitution Reactions of Activated Halogens.

ABSTRACT: Building blocks have been identified that can be functionalised by sequential nucleophilic aromatic substitution. Some examples are reported that involve the formation of cyclic benzodioxin and phenoxathiine derivatives from 4,5-difluoro-1,2-dinitrobenzene, racemic quinoxaline thioethers, and sulfones from 2,3-dichloroquinoxaline and (2-aminophenylethane)-2,5-dithiophenyl-4-nitrobenzene from 1-(2-aminophenylethane)-2-fluoro-4,5-dinitrobenzene. Four X-ray single-crystal structure determinations are reported, two of which show short intermolecular N-O^…N "π hole" contacts.

SUBMITTER: Plater MJ

PROVIDER: S-EPMC11311403 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature

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Sequential Nucleophilic Aromatic Substitution Reactions of Activated Halogens.

Plater M John MJ Harrison William T A WTA

International journal of molecular sciences 20240726 15

Building blocks have been identified that can be functionalised by sequential nucleophilic aromatic substitution. Some examples are reported that involve the formation of cyclic benzodioxin and phenoxathiine derivatives from 4,5-difluoro-1,2-dinitrobenzene, racemic quinoxaline thioethers, and sulfones from 2,3-dichloroquinoxaline and (2-aminophenylethane)-2,5-dithiophenyl-4-nitrobenzene from 1-(2-aminophenylethane)-2-fluoro-4,5-dinitrobenzene. Four X-ray single-crystal structure determinations a ...[more]

PMID: 39125731

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