†Department of Chemistry, ‡Department of Chemistry and Materials Science, Tokyo Institute of Technologyand §JST-CREST, O-okayama, Meguro-ku, Tokyo 152-8551, Japan
∥ Japan Synchrotron Radiation Research Institute/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
J. Am. Chem. Soc., Article ASAP
DOI: 10.1021/jacs.5b02716
Publication Date (Web): May 18, 2015
Copyright © 2015 American Chemical Society
http://pubs.acs.org/doi/abs/10.1021/jacs.5b02716
http://pubs.acs.org/doi/abs/10.1021/jacs.5b02716
Abstract
By use of the reversible trimerization of boronic acids, the series of boroxine cages 3-mer, 6-mer, and 12-mer were constructed from rationally designed diboronic acids whose bond angles between two C–B bonds are 60°, 84°, and 117°, respectively. Boroxine cages 6-mer and 12-mer have 1.5 and 2.5 nm sized cavities, respectively.
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