Big Chemical Encyclopedia

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

Articles Figures Tables About

Alkynyl halides organometallic reagents

Alkynyl halides are possible monomers for the cross-coupling polymerization, in which boronic acids are used as the organometallic counterparts. For example, bifunctional boronic acid 46 is allowed to react with l,4-di(bromoethy-nyl)benzene 138 to afford the corresponding PAE 139 as shown in Equation (64). Polymerization proceeds at room temperature in toluene in the presence of silver(i) oxide as an activator of the boron reagent. The polymer 139 is obtained in 30-50% yield showing color of red-brown to deep red-brown and slight solubility in toluene (<0.1 wt.%). The molecular weight (Mr of 139 was 1700-4300 (PDI = 1.3-3.6). [Pg.676]

CROSS-COUPLING REACTIONS BETWEEN ORGANOMETALLIC REAGENTS AND VINYL, ARYL AND ALKYNYL HALIDES AND RELATED COMPOUNDS... [Pg.521]

See other pages where Alkynyl halides organometallic reagents is mentioned: [Pg.218]    [Pg.329]    [Pg.165]    [Pg.116]    [Pg.392]    [Pg.72]    [Pg.747]    [Pg.651]    [Pg.291]    [Pg.6]    [Pg.1443]    [Pg.118]    [Pg.306]    [Pg.310]    [Pg.11]    [Pg.80]    [Pg.128]    [Pg.365]    [Pg.49]    [Pg.212]    [Pg.1464]    [Pg.290]    [Pg.99]    [Pg.189]    [Pg.148]    [Pg.426]    [Pg.130]    [Pg.566]    [Pg.805]    [Pg.1029]    [Pg.162]    [Pg.320]    [Pg.43]    [Pg.445]    [Pg.445]    [Pg.124]    [Pg.763]    [Pg.91]    [Pg.94]    [Pg.445]    [Pg.317]    [Pg.94]    [Pg.63]   
See also in sourсe #XX -- [ Pg.3 , Pg.522 ]

See also in sourсe #XX -- [ Pg.522 ]



SEARCH



Alkynyl halide

Alkynylating reagents

Halides organometallic

Halides reagents

Organometallic reagents

Reagents alkynylation

© 2024 chempedia.info