Dialkynylation of aryl aldehydes using dialkynylboron chlorides: A transition-metal-free route to 1,4-diynes
摘要:
Dialkynylboron chlorides couple smoothly with aryl aldehydes at room temperature to afford 1,4-dialkynes in good to excellent yields. Dialkynylboron halides act simultaneously as Lewis acid and reactant in this coupling reaction. (C) 2012 Elsevier B. V. All rights reserved.
Dialkynylation of aryl aldehydes using dialkynylboron chlorides: A transition-metal-free route to 1,4-diynes
摘要:
Dialkynylboron chlorides couple smoothly with aryl aldehydes at room temperature to afford 1,4-dialkynes in good to excellent yields. Dialkynylboron halides act simultaneously as Lewis acid and reactant in this coupling reaction. (C) 2012 Elsevier B. V. All rights reserved.