472-78-6Relevant academic research and scientific papers
Transformations of α- And β-ionones in the presence of Al 2O3 in a supercritical solvent in a flow reactor
Anikeev,Sivcev,Volcho,Salakhutdinov
, p. 1940 - 1942 (2013/11/06)
The reactivity of α- and β-ionones under the supercritical conditions in a flow type reactor in the presence of Al2O3 at 200-230 C was studied. α-Ionone was reduced to α-ionol, while β-ionol was unstable already at 200 C and underwent dehydration. The secondary reaction products were the corresponding megastigmatrienes.
Enantioselective synthesis of α-ionone derivatives using an anti SN2′ substitution of functionalized zinc organometallics
Soorukram, Darunee,Knochel, Paul
, p. 2409 - 2411 (2007/10/03)
(Equation Presented) The allylic substitution of sterically hindered (2-iodocycloalkyl)phosphates proceeds with complete anti SN2′ stereoselectivity with mixed diorganozincs of the type RZnCH 2SiMe3 in the presence of CuCN·2LiCI. Only the group R of the copper-zinc reagent is transferred in the allylic substitution. This method was used to prepare odoriferous substances such as (R)-α-ionone in 97% ee and (R)-dihydro-α-ionone in 98% ee.
Chemoselective Hydrogen Transfer Reduction of Unsaturated Ketones to Allylic Alcohols with Solid Zr and Hf Catalysts
De Bruyn, Mario,De Vos, Dirk E.,Jacobs, Pierre A.
, p. 1120 - 1125 (2007/10/03)
α,β-Unsaturated ketones were reduced to allylic alcohols with high chemo- and diastereoselectivity, using Zr and Hf compounds heterogenised on mesoporous molecular sieves.
