公开(公告)号：EP3008059A1

公开(公告)日：2016-04-20

申请号：EP14733376.9

申请日：2014-06-13

申请人： SYRAL Belgium NV ,  Université Claude Bernard Lyon 1 ,  Centre National de la Recherche Scientifique (C.N.R.S.)

发明人： GOZLAN, Charlotte ,  DUGUET, Nicolas ,  LEMAIRE, Marc ,  QUENEAU, Yves ,  REDL, Andreas

IPC分类号： C07D407/04 ,  C07D493/04

CPC分类号： C07D493/04 ,  C07D407/04

摘要： According to the present invention, it has been found that long-chain alkyl cyclic acetals made from sugars can be obtained by a method that comprises the steps consisting of: - dehydrating a hexitol in a mono-anhydro-hexitol substrate; - reacting the obtained mono-anhydro-hexitol substrate with an alkyl aldehyde reagent containing between 5 and 18 carbon atoms, by means of an acetalisation reaction with a substrate/reagent ratio of between 5:1 and 1:1, or with a derivative of an alkyl aldehyde reagent containing between 5 and 18 carbon atoms, via a trans-acetalisation reaction with a substrate/reagent ratio of between 1:1 and 1:3, in the presence of an acid catalyst and in an environment that is free of solvent or that consists of a non-aqueous polar solvent; - recovering the long-chain alkyl acetal hexitane from the obtained mixture.