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Regioselective [2+2+2] Cycloaddition Reaction Using Allene-ynes with Simple Allenes under Nickel Catalysis
被引:8
|作者:
Arai, Shigeru
[1
,2
]
Izaki, Arisa
[1
]
Amako, Yuka
[1
]
Nakajima, Masaya
[1
,4
]
Uchiyama, Masanobu
[3
,4
]
Nishida, Atsushi
[1
,2
]
机构:
[1] Chiba Univ, Grad Sch Pharmaceut Sci, Chuo Ku, 1-8-1 Inohana, Chiba, Japan
[2] Chiba Univ, Mol Chiral Res Ctr, Inage Ku, 1-33 Yayoi Cho, Chiba, Japan
[3] Univ Tokyo, Grad Sch Pharmaceut Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo, Japan
[4] RIKEN, Adv Elements Chem Lab, CPR, 2-1 Hirosawa, Wako, Saitama, Japan
基金:
日本学术振兴会;
关键词:
allene;
catalysis;
cycloaddition;
nickel;
regioselective;
RHODIUM(I)-CATALYZED CYCLOISOMERIZATION;
ENANTIOSELECTIVE SYNTHESIS;
ALKENYLATIVE CYCLIZATIONS;
INTERMOLECULAR 5+2;
ENE-ALLENES;
ALKYNES;
CHEMOSELECTIVITY;
VINYLCYCLOPROPANES;
HYDROSILYLATION;
ANNULATION;
D O I:
10.1002/adsc.201900719
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A Ni-catalyzed [2+2+2] cycloaddition reaction between allene-ynes and various mono-, di- and tri-substituted allenes is described. This protocol effectively differentiates allenyl pi components and shows broad substrate generality to give highly functionalized carbocycles. A DFT study played a key role in revealing a detailed reaction mechanism that controls site-, regio- and stereoselectivity, which are thought to originate in the substituent effect on pi-bonds in the early transition state.
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页码:4882 / 4887
页数:6
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