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Synthesis of 1,2′-Spirobi[indene]-1,3-diones by Pd(II)-Catalyzed C-H Activation and Alkynes Annulation Reaction
被引:0
|作者:
Xu, Xuefeng
[1
]
Yu, Lintao
[1
]
Chang, Mengfan
[1
]
Wang, Di
[1
]
Shen, Zhi
[1
]
Zhang, Xu
[1
]
机构:
[1] Nanyang Normal Univ, Coll Chem & Pharmaceut Engn, Engn Technol Res Ctr Henan Prov Solar Catalysis, Nanyang 473061, Peoples R China
基金:
中国国家自然科学基金;
关键词:
2-Aryl-1,3-indandiones;
Alkynes;
Spirobi[indene]-1,3-diones;
Palladium Catalyst;
CATALYZED OXIDATIVE ANNULATION;
BOND-DISSOCIATION ENERGIES;
INTERNAL ALKYNES;
CHEMOSELECTIVE ACTIVATION;
FUNCTIONALIZATION;
METAL;
DERIVATIVES;
4-HYDROXYCOUMARINS;
2-ALKENYLPHENOLS;
DEAROMATIZATION;
D O I:
10.1002/adsc.202400223
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
An intermolecular annulation reaction of 2-aryl-1,3-indandions with alkynes was reported using Pd(OAc)2 to access spirobi[indene]-1,3-diones. Under palladium catalysis, the substrates form a homocoupling dimer intermediate through a catalytic dehydrogenative cross-coupling process. The palladium(II) species could come from dimer or 2-aryl-1,3-indandion. Notably, this pathway is not typically observed in enol-directed formal sp3 C-H functionalization/oxidative annulation palladium chemistry. This transformation provides a route to access a class of functionalized spiro carbocyclic indenes. image
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页码:2926 / 2932
页数:7
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