Tetrahedron letters

Synthesis of symmetrical 1, 3-butadiynes by homocoupling reactions of alkynylboronates mediated by a copper salt

Y Nishihara, M Okamoto, Y Inoue, M Miyazaki…

文献索引：Nishihara, Yasushi; Okamoto, Masanori; Inoue, Yoshiaki; Miyazaki, Mikihiro; Miyasaka, Mitsuru; Takagi, Kentaro Tetrahedron Letters, 2005 , vol. 46, # 50 p. 8661 - 8664

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被引用次数: 38

摘要

Alkynylboronates are employed as a practical and versatile precursor for a variety of π- 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.