Photocatalyzed formal carbooxygenation of terminal alkynes,Organic Chemistry Frontiers

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Photocatalyzed formal carbooxygenation of terminal alkynes
Organic Chemistry Frontiers ( IF 4.6 ) Pub Date : 2020-05-21 , DOI: 10.1039/d0qo00020e
Fengjuan Chen _{1,

2,

3,

4,

5} , Can Yang _{1,

2,

3,

4,

5} , Xinwei Hu _{1,

2,

3,

4,

5} , Xiaoqi Zhang _{5,

6,

7,

8,

9} , Haisheng Xie _{1,

2,

3,

4,

5} , Huanfeng Jiang _{1,

2,

3,

4,

5} , Fubin Jiang _{5,

10,

11,

12} , Wei Zeng _{1,

2,

3,

4,

5}

Affiliation

An efficient visible-light-induced formal carbooxygenation of N-arylsulfonylamido alkynes has been developed. This metal-free transformation allows for the rapid assembly of 4-formyl benzothiazines from readily available substrates through the sequential formation of C–C and C [double bond, length as m-dash]