Rhodium-Catalyzed Intramolecular [4+4] Cycloaddition of Bisdienes To Form Ring-Condensed 1,5-Cyclooctadienes
作者:Young Chung、Jang Park、Ji Park、Ji Park、Mi Hong、Soo Kim、Chong Kim
DOI:10.1055/s-0035-1560806
日期:——
A novel simple synthesis of bicyclo[6.n.0] (n = 3, 4) frameworks from various bisdienes by rhodium-catalyzed [4+4] cycloaddition has been developed. The reaction tolerates carbon or heteroatoms in the tether between the diene moieties.
Tandem reaction: The Pd‐catalyzed three‐component coupling reaction of an allylic alcohol, terminal alkyne, and organoborane to give (E)‐1‐substituted 2‐alkyl‐1,4‐pentadienes, involving geminal allylation and alkylation at the acetylenic terminal carbon, is described. Bis‐diene undergoes a similar multicomponent coupling reaction with acetylene and organoborane, involving cyclization of bis‐π‐allylpalladium