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Copper-catalyzed 1,1-difunctionalization of terminal alkynes: a three-component reaction for the construction of vinyl sulfones
被引:24
|作者:
Sun, Qi
[1
,2
,3
]
Li, Linge
[1
,2
,3
]
Liu, Liyan
[1
,2
,3
]
Yang, Yu
[1
,2
,3
]
Zha, Zhenggen
[1
,2
,3
]
Wang, Zhiyong
[1
,2
,3
]
机构:
[1] Univ Sci & Technol China, CAS Key Lab Soft Matter Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Chinese Acad Sci, Ctr Excellence Mol Synth, Collaborat Innovat Ctr Suzhou Nanosci & Technol, Hefei 230026, Anhui, Peoples R China
[3] Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China
基金:
中国国家自然科学基金;
关键词:
copper;
terminal alkynes;
germinal difunctionalization;
multicomponent reaction;
vinyl sulfones;
STEREOSELECTIVE CONJUGATE ADDITION;
EFFICIENT SYNTHESIS;
MEDIATED SYNTHESIS;
RADICAL-ADDITION;
ALKENYL HALIDES;
CINNAMIC-ACIDS;
SULFUR-DIOXIDE;
BOND FORMATION;
INHIBITORS;
INSERTION;
D O I:
10.1007/s11426-019-9454-8
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A copper-catalyzed 1,1-difunctionalization of terminal alkynes was achieved via a three-component reaction, providing a variety of vinyl sulfones with good yields and excellent chemo- and stereoselectivity. Preliminary mechanistic studies indicated that the reaction probably underwent a Cu-catalyzed formal C-H insertion to produce an allene intermediate, which was then trapped by a sulfonyl anion to give the corresponding product.
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页码:904 / 908
页数:5
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