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Mechanistic Insights Into the Rhodium-Catalyzed C-H Alkenylation/ Directing Group Migration and [3+2] Annulation: A DFT Study
被引:0
|作者:
Ling, Baoping
[1
]
Wang, Shuangjie
[1
]
Xie, Yuxin
[1
]
Liu, Peng
[1
]
Jiang, Yuan-Ye
[1
]
Zhong, Wenhui
[1
]
Bi, Siwei
[1
]
机构:
[1] Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
AB-INITIO PSEUDOPOTENTIALS;
TETRASUBSTITUTED ALKENES;
DENSITY FUNCTIONALS;
PROPARGYL ALCOHOLS;
M06;
SUITE;
ALKYNES;
BENZAMIDES;
ELEMENTS;
INDOLES;
D O I:
10.1021/acs.joc.2c03089
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The mechanism of the rhodium-catalyzed C-H alkenylation/directing group migration and [3+2] annulation of N- aminocarbonylindoles with 1,3-diynes has been investigated with DFT calculations. On the basis of mechanistic studies, we mainly focus on the regioselectivity of 1,3-diyne inserting into the Rh-C bond and the N-aminocarbonyl directing group migration involved in the reactions. Our theoretical study uncovers that the directing group migration undergoes a stepwise beta-N elimination and isocyanate reinsertion process. As studied in this work, this finding is also applicable to other relevant reactions. Additionally, the role of Na+ versus Cs+ involved in the [3+2] cyclization reaction is also probed.
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页码:4494 / 4503
页数:10
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