80956-68-9Relevant articles and documents
Simple synthetic method of allyl- and vinyl-epoxides by allylation of carbonyl groups with allylic tins catalyzed by PbI2-HMPA
Shibata, Ikuya,Fukuoka, Shoji,Baba, Akio
, p. 533 - 534 (1998)
Allyl epoxides were prepared by the chemoseletive allylation at the carbonyl groups of a-bromo ketones with allylic tin, where PbI2-HMPA effected as a chemoselective catalyst. Moreover, vinyl epoxides were obtained in one pot procedure by the P
Synthese d'epoxydes vinyliques halogenes
Beny, Jean-Pierre,Pommelet, Jean-Claude,Chuche, Josselin
, p. 369 - 376 (2007/10/02)
β-Halovinyloxiranes 2-9, a little studies class of compounds, have been synthesized by condensation of haloallylsulfonium ylids derived from salts 1 with aliphatic, aromatic or α,β-unsaturated aldehydes in a two-phase system (aqueous sodium hydroxide and methylene chloride).The best yields were obtained when the reaction was carried out at room temperature with two or three equivalents of sodium hydroxide.Moreover, α-halovinyloxiranes 13-15 have been prepared by addition of the ylids derived from vinyl and benzylsulfonium salts 10-12 to α-halounsaturated aldehydes.
