Flexible Synthesis of Fused Benzofuran Derivatives by Rhodium-Catalyzed [2 + 2 + 2] Cycloaddition with Phenol-Linked 1,6-Diynes
作者:Yoshiyuki Komine、Akiyoshi Kamisawa、Ken Tanaka
DOI:10.1021/ol900802d
日期:2009.6.4
A flexible and convenient synthesis of fused benzofuran derivatives has been achieved under mild reaction conditions by cationic rhodium(I)/H8−BINAP complex-catalyzed [2 + 2 + 2] cycloadditions of phenol-linked 1,6-diynes with alkynes and nitriles.
在温和的反应条件下,通过阳离子铑(I)/ H 8 -BINAP络合物催化苯并连接的1,6-二炔与炔烃的[2 + 2 + 2]环加成反应,可以灵活,方便地合成稠合的苯并呋喃衍生物。腈。