Journal
TETRAHEDRON LETTERS
Volume 46, Issue 50, Pages 8661-8664Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.10.056
Keywords
boron; copper; 1,3-diynes; homocoupling; transmetalation
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Alkynylboronates are employed as a practical and versatile precursor for a variety of it-conjugated organic compounds. In the presence of a Cu(I) or Cu(II) salt, transformation of alkynylboronates into the corresponding 1,3-diynes upon exposure to air takes place readily in aprotic polar solvents such as DMI. (c) 2005 Elsevier Ltd. All rights reserved.
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