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Superelectrophiles in Synthesis: Preparation of Aromatic Imides.


ABSTRACT: Aromatic carboxylic acids are found to undergo reactions with isocyanates, wherein triflic acid promotes the formation of aromatic imide products in fair to good yields. It is proposed that the carboxylic acid group directs the isocyanate electrophile to the ortho-position. This is thought to occur by the formation of a temporary carbamic acid anhydride group, which cleaves upon ortho-functionalization. A series of imide products are synthesized, and the synthesis of a potential selective inhibitor of tyrosyl DNA phosphodiesterase II is performed.

SUBMITTER: Kennedy SH 

PROVIDER: S-EPMC7718718 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Superelectrophiles in Synthesis: Preparation of Aromatic Imides.

Kennedy Sean H SH   Schaeff Mark N MN   Klumpp Douglas A DA  

The Journal of organic chemistry 20191009 21


Aromatic carboxylic acids are found to undergo reactions with isocyanates, wherein triflic acid promotes the formation of aromatic imide products in fair to good yields. It is proposed that the carboxylic acid group directs the isocyanate electrophile to the <i>ortho</i>-position. This is thought to occur by the formation of a temporary carbamic acid anhydride group, which cleaves upon <i>ortho</i>-functionalization. A series of imide products are synthesized, and the synthesis of a potential se  ...[more]

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