4.4 Article

Convenient and highly efficient synthesis of boron-dipyrrins bearing an arylboronate center

Journal

TETRAHEDRON LETTERS
Volume 50, Issue 26, Pages 3349-3351

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.02.094

Keywords

Dipyrrin; Boron; BODIPY; Boronic acid; Fluorescence

Funding

  1. Ministry of Education, Culture, Sports, Science, and Technology, Japan

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Novel boron-dipyrrins bearing an aryl group and a phenyloxy group linked directly to the boron center have been prepared in high yields from arylboronic acid. The unique Coordination geometry around the boron was determined by an X-ray crystallographic analysis. The complexes showed a strong fluorescence, and alkylation of the OH group shifted the emission to a longer wavelength with a larger Stokes shift.

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