期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 44, 页码 14570-14574出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201807743
关键词
1,1-carboboration; 1,1-diboration; borole; tetraaryldiboranes(4)
资金
- Deutsche Forschungsgemeinschaft
- European Research Council
The beta-borylborole 3 adds phenylacetylene in a [4+2]-cycloaddition to give the boryl-substituted 7-boranorbornadiene derivative 4b. Thermolysis (60 degrees C) results in a rearrangement with B-B coupling to give the tetraaryldiborane(4) 6b. It splits dihydrogen with cleavage of the B-B bond. With the terminal acetylene 1-pentyne the diborane(4) compound 6b undergoes a rare 1,1-diboration reaction to yield the respective geminal diborylalkene product 14.
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