Tetrahedron p. 4777 - 4786 (1986)
Update date:2022-09-26
Topics:
Duhamel, P.
Hennequin, L.
Poirier, J. M.
Tavel, G.
Vottero, C.
In this report, a general method for the preparation of 1,5-dicarbonyl compounds and six membered ring annelation is described.This method involves the reaction of hemiacetal vinylogs 1 with enol ethers 2 or 3 in the presence of a Lewis acid.This reaction was successfully applied to the enol ethers of α and α,α'-hindered ketones such as 2,2,6-trimethyl cyclohexanone. α-Cyperone and 6-epi-α-cyperone were obtained using this process.
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Doi:10.1007/BF00955378
(1986)Doi:10.1016/S0040-4039(00)85018-2
(1986)Doi:10.1039/b812528g
(2008)Doi:10.1007/BF00522734
(1986)Doi:10.1248/cpb.34.3102
(1986)Doi:10.1055/s-1986-31638
(1986)
