Isomeric mixture of meta and para tertio-butylphenyl propanal and production thereof
申请人:O'Laughlin Industries, Co. Ltd.
公开号:EP2233556A1
公开(公告)日:2010-09-29
A product of p-tert-butylphenyl propionaldehyde and m-tert-butylphenyl propionaldehyde, wherein m-tert-butylphenyl propionaldehyde is in an amount from 6% to 60% of the combination of p-tert-butylphenyl propionaldehyde and m-tert-butylphenyl propionaldehyde. Also a method including; adding dropwise an aldehyde solution to a basic solution; and, collecting a fraction of p-tert-butyl cinnamic aldehyde m-tert-butyl cinnamic aldehyde therefrom; and, adding a transition metal catalyst to a solution of the p-tert-butyl cinnamic aldehyde in ethanol, and, collecting therefrom by distillation a product ofp-tert-butylphenyl propionaldehyde and the meta isomer m-tert-butylphenyl propionaldehyde; wherein the product comprises m-tert-butylphenyl propionaldehyde in an amount from 6% to 60% of the combination of p-tert-butylphenyl propionaldehyde and m-tert-butylphenyl propionaldehyde.
一种由对叔丁基苯丙醛和间叔丁基苯丙醛生成的产品,其中间叔丁基苯丙醛的含量在对叔丁基苯丙醛和间叔丁基苯丙醛的组合中为6%至60%。另外,一种方法包括:将醛溶液滴加到碱性溶液中;收集其中的对叔丁基肉桂醛和间叔丁基肉桂醛的部分;将过渡金属催化剂加入对叔丁基肉桂醛在乙醇中的溶液中,并通过蒸馏从中收集一种由对叔丁基苯丙醛和间异构体间叔丁基苯丙醛生成的产品;其中该产品包含的间叔丁基苯丙醛的含量在对叔丁基苯丙醛和间叔丁基苯丙醛的组合中为6%至60%。