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2- Methyl-1 -methylenecycloalkanes

The nature of the ligands on the palladium in ir-allyl complexes can influence the regioselectivity exhibited by soft carbon nucleophiles. ir-Allylpalladium complexes generated from methylenecycloalkanes provide an example of the effect of ligands on regiochemistry. The complexes derived from methylene-cyclopentane and methylenecycloheptane both exhibit exclusive exocyclic addition by the anion of methyl(methylsulfonyl) acetate with triphenylphosphine ligands on the Pd (equation 223). In contrast, the complex derived from methylenecyclohexane yields a 62 38 ratio of exocyclic endocyclic addition (equation 226). [Pg.631]

Methylenecycloalkanes. The vinyl anion (a) generated from the trisyl hydrazone (1) of an lo-chloroalkyl methyl ketone with jec-butyllithium (2 equiv.) and TMEDA... [Pg.533]

METHYLENECYCLOALKANES 2,4,6-TliisoprO-pylbenzenesulfonyl hydrazine. a-METHYLENECYCLOBUTANONES Chloro-[(trimethy lsily l)methyl]ketene. METHYLENECYCLOPENTANES 4-Chloro-2-lithio-1-butene. [Pg.587]

See other pages where 2- Methyl-1 -methylenecycloalkanes is mentioned: [Pg.15]    [Pg.60]    [Pg.101]    [Pg.7]    [Pg.7]    [Pg.548]    [Pg.548]    [Pg.445]    [Pg.222]    [Pg.251]    [Pg.548]   
See also in sourсe #XX -- [ Pg.442 ]



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Methylenecycloalkanes

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