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Synthesis of Dibenzo[b,f]azepines via Palladium-Catalyzed Cascade [4+3] Annulation of o-Alkenyl Bromoarenes and o-Bromoaniline Derivatives
被引:2
|作者:
Zhan, Xin-Chen
[1
]
Lin, Guo-Qiang
[1
,2
]
Fu, Jian-Guo
[1
]
Ji, Xiao-Ming
[1
]
Zhang, Shu-Sheng
[1
]
Feng, Chen-Guo
[1
,2
]
机构:
[1] Shanghai Univ Tradit Chinese Med, Innovat Res Inst Tradit Chinese Med, Res Ctr Chiral Drugs, Shanghai Frontiers Sci Ctr TCM Chem Biol, Shanghai 201203, Peoples R China
[2] Univ Chinese Acad Sci, Shanghai Inst Organ Chem, Ctr Excellence Mol Synth, Key Lab Synthet Chem Nat Subst, Shanghai 200032, Peoples R China
基金:
中国国家自然科学基金;
关键词:
annulation;
dibenzo[b;
f]azepines;
palladacycle;
cascade reaction;
palladium;
C-H activation;
REMOTE METALATION;
OXCARBAZEPINE;
HETEROCYCLES;
ARYL;
ARYLATION;
BOND;
D O I:
10.1002/adsc.202300336
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A cascade [4+3] annulation of o-alkenyl bromoarenes and o-bromoaniline derivatives was described. Various dibenzo[b,f]azepines with substitutions on the 10/11 position were obtained in 14-97% yields. The synthetic versatility of this protocol is highlighted by the preparation of a precursor of the drug molecule oxcarbazepine, a gram-scale synthesis, and two product transformations. Unlike previous amination/Heck sequence, this cascade process is supposed to undergo a C(vinyl), C(aryl)-palladacycle involved pathway.
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页码:4127 / 4131
页数:5
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