Categories: C-Cl Bond Formation >
Synthesis of allyl chlorides
Recent Literature

AcCl-EtOH transforms primary and secondary allyl acetates into allyl
chlorides that retain the olefinic bond in the more stable position. Secondary
allyl alcohols react with almost the same efficacy as the acetates, but the
reactions of primary allyl alcohols that possess 1,2-disubstituted alkenes are
very slow. Simple removal of the volatiles gives products in high purity.
V. K. Yadav, K. G. Babu, Tetrahedron, 2003, 59,
9111-9116.

V. K. Yadav, K. G. Babu, Tetrahedron, 2003, 59,
9111-9116.

Aryl allylic alcohols are converted to halogenated unsaturated ketones or
allylic halides under Moffatt-Swern Conditions using excess DMSO and oxalyl
chloride or oxalyl bromide. Electron-poor aromatic rings favor formation of the
halogenated ketone, while electron-donating substituents in the ortho or
para
positions favor formation of the allylic halide.
J. Yin, C. E. Gallis, J. D. Chisholm, J. Org. Chem.,
2007, 72, 7054-7057.

Activating of magnesium alkoxides
using TiCl4 allows the generation of allylic chlorides. An efficient, one-pot method for the conversion of carbonyl electrophiles to
allylic chlorides has been developed.
M. J. Fuchter, J.-N. Levy, Org. Lett.,
2008,
10, 4919-4922.

