Palladium-catalyzed cocyclotrimerization of allenes with arynes: selective synthesis of phenanthrenes.
Palladium-catalyzed cocyclotrimerization of allenes with arynes has been developed for selectively synthesizing phenanthrenes. In the presence of [(allyl)PdCl](2) and P(o-tol)(3), a variety of allenes, including internal and terminal allenes, underwent the cocyclotrimerization with arynes to afford the corresponding phenanthrenes in moderate to good yields. The results showed the selectivity of the reaction based on allenes.
Liu
Yi-Lin
YL
Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China.
Liang
Yun
Y
Pi
Shao-Feng
SF
Huang
Xiao-Cheng
XC
Li
Jin-Heng
JH
D000466:Alkadienes / Q000138:chemical synthesis / Q000737:chemistry*; D002384:Catalysis; D003500:Cyclization; D015394:Molecular Structure; D010165:Palladium / Q000737:chemistry*; D010616:Phenanthrenes / Q000138:chemical synthesis* / Q000737:chemistry; D013329:Structure-Activity Relationship
D000466:Alkadienes; D010616:Phenanthrenes; C025947:propadiene; D010165:Palladium