56790-71-7Relevant academic research and scientific papers
Highly regioselective rearrangement of 2-substituted vinylepoxides catalyzed by gallium(III) triflate
Deng, Xian-Ming,Sun, Xiu-Li,Tang, Yong
, p. 6537 - 6540 (2007/10/03)
Gallium(III) triflate catalyzed the rearrangement of 2-sub-stituted vinylepoxides into β,γ-unsaturated carbonyl compounds with high regio- and chemoselectivity (>97/3) in low catalyst loading (1-5 mol%). The alkyl-substituted trimethylsilylvinyl epoxides
Preparation of α,β-unsaturated carbonyl compounds
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, (2008/06/13)
A process for the preparation of α,β-unsaturated carbonyl compounds of the formula I STR1 where R1 is hydrogen, C1 -C10 -alkyl, C1 -C10 -alkoxy or aryloxy, R2 is aryl which is unsubstituted or substituted by C1 -C4 -alkyl, C1 -C4 -alkoxy, trifluoromethyl and/or halogen and R3 is tetrahydrofuranyl or aryl which is substituted by C1 -C4 -alkyl, C1 -C4 -alkoxy, trifluoromethyl and/or halogen, which comprises reacting 3-amino-2-propen-1-ones of the formula II STR2 where R1 and R2 have the abovementioned meanings, and R4 and R5 are, independently of one another, hydrogen, C1 -C10 -alkyl or aryl, with a magnesium halide of the formula III where Y is halogen, at from -20° to 100° C., and novel α,β-unsaturated carbonyl compounds and novel 3-amino-2-propen-1-ones are described.
