Propanal Production Methods
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United States of America Patent
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Issued Date -
Oct 7, 2010
app pub date -
Mar 23, 2010
filing date -
Mar 23, 2009
priority date (Note) -
Abandoned
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Abstract
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 of p-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.
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