Big Chemical Encyclopedia

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

Articles Figures Tables About

Bromomethyl group, size

Carbonylative cycloaddition of allyl bromides and acetylenes in methanol in the presence of nickel tetracarbonyl results in the formation of cyclopentenones. For instance, 3-bromocyclopentene and methyl but-2-ynoate afford the diester 493, the halogen atom being replaced by the methoxycarbonyl group. Nickel tetracarbonyl also catalyses the reaction of l-(bromomethyl) cycloalkenes 494 of ring size 5-8 with methyl but-2-ynoate in methanol to yield the spiro-compounds 495 (equation 54). ... [Pg.344]

See other pages where Bromomethyl group, size is mentioned: [Pg.397]    [Pg.12]    [Pg.516]    [Pg.22]    [Pg.463]    [Pg.45]    [Pg.932]    [Pg.763]   
See also in sourсe #XX -- [ Pg.34 ]



SEARCH



Bromomethyl

Bromomethylation

© 2024 chempedia.info