A process for the manufacture of gamma-delta-unsaturated ketones of formula (R1)(R2)C = CH - CH2 - CH2 - CO - R3 (I), wherein R1 is methyl or ethyl; R2 is a saturated or unsaturated linear or cyclic hydrocarbon residue and R3 is methyl or ethyl, by reacting a tertiary vinyl carbinol of formula (R1)(R2)C(OH) - CH = CH2 (II) with an isopropenyl methyl or ethyl ether of formula H3C-C(OR3) = CH2 (III) in the presence of an ammonium salt as catalyst.
申请公布号
WO2010046199(A3)
申请公布日期
2010.08.12
申请号
WO2009EP62486
申请日期
2009.09.28
申请人
DSM IP ASSETS B.V.;BONRATH, WERNER;KUENZI, ROLF;AQUINO, FABRICE