218965-44-7Relevant academic research and scientific papers
A Convenient Preparation of Chalcogenoenynes from β-Bromovinyl Ketene Chalcogenoacetals
Zeni, Gilson,Stracke, Marcelo Paulo,Lissner, Elizeo,Braga, Antonio Luiz
, p. 1880 - 1882 (2007/10/03)
β-Bromovinyl ketene chalcogenoacetals have been synthesized stereoselectively via electrophilic addition of the benzene-selenenyl bromide to substituted alkynes. The palladium-catalyzed cross-coupling reaction of β-bromovinyl ketene chalcogenoacetals with
Stereoconservative formation and reactivity of α-chalcogen- functionalized vinyllithium compounds from α-bromo-vinylic chalcogenides
Braga, Antonio L.,Zeni, Gilson,De Andrade, Leandro H.,Silveira, Claudio C.
, p. 595 - 596 (2007/10/03)
Bromine/lithium exchange was performed upon treatment of α-bromo-vinylic chalcogenides with butyllithium in hexane at room temperature to provide α-chalcogen-vinyllithium intermediates quantitatively. Addition of electrophiles to the lithiated compounds g
