Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Organocopper compounds, reactions with enynes

As in the case of addition reactions of carbon nucleophiles to activated dienes (Section HA), organocopper compounds are the reagents of choice for regio- and stereoselective Michael additions to acceptor-substituted enynes. Substrates bearing an acceptor-substituted triple bond besides one or more conjugated double bonds react with organocuprates under 1,4-addition exclusively (equation 51)138-140 1,6-addition reactions which would provide allenes after electrophilic capture were not observed (cf. Section IV). [Pg.670]

See other pages where Organocopper compounds, reactions with enynes is mentioned: [Pg.61]    [Pg.673]    [Pg.153]    [Pg.153]    [Pg.512]    [Pg.153]    [Pg.673]    [Pg.673]    [Pg.192]   
See also in sourсe #XX -- [ Pg.670 , Pg.671 , Pg.672 , Pg.673 , Pg.674 , Pg.675 , Pg.676 ]

See also in sourсe #XX -- [ Pg.670 , Pg.671 , Pg.672 , Pg.673 , Pg.674 , Pg.675 , Pg.676 ]

See also in sourсe #XX -- [ Pg.670 , Pg.671 , Pg.672 , Pg.673 , Pg.674 , Pg.675 , Pg.676 ]



SEARCH



Enynes

Organocopper

Organocopper compounds

Organocopper compounds, reaction with

Organocopper compounds, reactions

Organocopper reactions

Organocoppers

© 2024 chempedia.info