Additive- and Ligand-Free Cross-Coupling Reactions
between Alkenes and Alkynes by Iridium Catalysis
Posted on 2019-06-12 - 14:43
Although a range
of transition-metal-catalyzed cross-coupling reactions
of alkenes and alkynes have been developed to produce valuable conjugated
dienes, extension of these reactions to iridium catalysis has yet
to be demonstrated. The first iridium-catalyzed alkene–alkyne
cross-coupling reactions have been realized under ligand- and additive-free
conditions. A wide range of acrylamides and alkynes could be used
as coupling partners, providing branched (Z,Z)-butadiene skeletons with excellent site- and stereoselectivities.
The utility of this approach is also demonstrated by preparative-scale
and C–H functionalization of perillic and artemisic amides.
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Sun, Yaling; Meng, Keke; Zhang, Jian; Jin, Mengxin; Huang, Nini; Zhong, Guofu (2019). Additive- and Ligand-Free Cross-Coupling Reactions
between Alkenes and Alkynes by Iridium Catalysis. ACS Publications. Collection. https://doi.org/10.1021/acs.orglett.9b01766
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AUTHORS (6)
YS
Yaling Sun
KM
Keke Meng
JZ
Jian Zhang
MJ
Mengxin Jin
NH
Nini Huang
GZ
Guofu Zhong