期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 21, 页码 6109-6114出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201800878
关键词
bond cleavage; carbon monoxide; diborane(4); isocyanide; triple bonds
资金
- JSPS KAKENHI [17H01191]
- JST CREST [14529307]
- Research Grants Council of Hong Kong [HKUST16304017]
The reaction of highly Lewis acidic tetra(o-tolyl) diborane(4) with CO afforded a mixture of boraindane and boroxine by the cleavage of the C O triple bond. C-13 labeling experiments confirmed that the carbon atom in the boraindane stems from CO. Simultaneously, formation of boroxine 3 could be considered as borylene transfer to capture the oxygen atom from CO. The reaction of diborane(4) with Bu-t-NC afforded an azaallene, while the reaction with Xyl-NC furnished cyclic compounds by direct C-H borylations.
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