scholarly journals Borylstannylation of alkynes with inverse regioselectivity: copper-catalyzed three-component coupling using a masked diboron

2015 ◽  
Vol 51 (29) ◽  
pp. 6297-6300 ◽  
Author(s):  
H. Yoshida ◽  
Y. Takemoto ◽  
K. Takaki

Masked boryl and stannyl moieties are smoothly installed into a carbon–carbon triple bond of diverse terminal alkynes under copper catalysis to provide cis-boryl(stannyl)alkenes in a straightforward manner. The regioselectivity is totally inverted to those of the previous borylstannylations, where a masked boryl moiety is attached to an internal carbon of alkynes.

2016 ◽  
Vol 2016 (27) ◽  
pp. 4643-4655 ◽  
Author(s):  
Ausilia Baglieri ◽  
Luca Meschisi ◽  
Francesco De Sarlo ◽  
Fabrizio Machetti

2018 ◽  
Vol 54 (14) ◽  
pp. 1742-1745 ◽  
Author(s):  
Yubing Huang ◽  
Donghao Yan ◽  
Xu Wang ◽  
Peiqi Zhou ◽  
Wanqing Wu ◽  
...  

A one-pot protocol to controllably assemble diverse benzothiazole derivatives from o-haloanilines, elemental sulfur and terminal alkynes has been realized.


2018 ◽  
Vol 20 (7) ◽  
pp. 1560-1563 ◽  
Author(s):  
Ge Wu ◽  
Lin Min ◽  
Hongchen Li ◽  
Wenxia Gao ◽  
Jinchang Ding ◽  
...  

A metal-free three-component coupling reaction of alkynes, Se powder and epoxides is described, providing an efficient, straightforward route for the preparation of alkynyl alkyl selenides via a double C–Se bond formation process.


2015 ◽  
Vol 51 (53) ◽  
pp. 10616-10619 ◽  
Author(s):  
H. Yoshida ◽  
A. Shinke ◽  
Y. Kawano ◽  
K. Takaki

A universal system for highly α-selective hydrostannylation of terminal alkynes has been developed by use of a distannane or a silylstannane as a stannylating reagent under copper catalysis.


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