Boron-based stepwise dioxygen activation with 1,4,2,5-diazadiborinine.
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ABSTRACT:
SUBMITTER: Wang B
PROVIDER: S-EPMC6385103 | biostudies-literature | 2019 Feb
REPOSITORIES: biostudies-literature
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Boron-based stepwise dioxygen activation with 1,4,2,5-diazadiborinine.
Chemical science 20181211 7
Activation of dioxygen (O<sub>2</sub>) by 1,4,2,5-diazadiborinine <b>1</b> is reported. Two boron centers in <b>1</b> undergo a formal [4 + 2] cycloaddition with O<sub>2</sub> at room temperature affording a bicyclo[2.2.2] molecule <b>2</b> featuring a B-O-O-B unit. Treatment of <b>2</b> with an additional equivalent of <b>1</b> leads to the cleavage of the O-O bond in <b>2</b> concomitant with the formation of two B-O bonds to yield <b>4</b> involving the extremely rare B<sub>4</sub>C<sub>2</su ...[more]
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