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Cyclic Alkyne Approach to Heteroatom-Containing Polycyclic Aromatic Hydrocarbon Scaffolds.


ABSTRACT: We report a modular synthetic strategy for accessing heteroatom-containing polycyclic aromatic hydrocarbons (PAHs). Our approach relies on the controlled generation of transient heterocyclic alkynes and arynes. The strained intermediates undergo in situ trapping with readily accessible oxadiazinones. Four sequential pericyclic reactions occur, namely two Diels-Alder/retro-Diels-Alder sequences, which can be performed in a stepwise or one-pot fashion to assemble four new carbon-carbon (C-C) bonds. These studies underscore how the use of heterocyclic strained intermediates can be harnessed for the preparation of new organic materials.

SUBMITTER: Darzi ER 

PROVIDER: S-EPMC6663605 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Cyclic Alkyne Approach to Heteroatom-Containing Polycyclic Aromatic Hydrocarbon Scaffolds.

Darzi Evan R ER   Barber Joyann S JS   Garg Neil K NK  

Angewandte Chemie (International ed. in English) 20190530 28


We report a modular synthetic strategy for accessing heteroatom-containing polycyclic aromatic hydrocarbons (PAHs). Our approach relies on the controlled generation of transient heterocyclic alkynes and arynes. The strained intermediates undergo in situ trapping with readily accessible oxadiazinones. Four sequential pericyclic reactions occur, namely two Diels-Alder/retro-Diels-Alder sequences, which can be performed in a stepwise or one-pot fashion to assemble four new carbon-carbon (C-C) bonds  ...[more]

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