METHOD FOR THE PRODUCTION OF MENTHOL
Processes comprising: (a) enantioselectively hydrogenating a starting material comprising a component selected from geraniol, nerol and mixtures thereof to form optically active citronellol; (b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically...
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| creator | EBEL, KLAUS JOHANN, THORSTEN BERGNER, EIKE JOHANNES LOEBER, OLIVER |
| description | Processes comprising: (a) enantioselectively hydrogenating a starting material comprising a component selected from geraniol, nerol and mixtures thereof to form optically active citronellol; (b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture. |
| format | Patent |
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(b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture.</description><language>eng ; fre ; ger</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; APPARATUS THEREFOR ; CHEMISTRY ; FOODS OR FOODSTUFFS ; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J ; GENERAL METHODS OF ORGANIC CHEMISTRY ; HUMAN NECESSITIES ; METALLURGY ; ORGANIC CHEMISTRY ; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL ; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT ; 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(b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>APPARATUS THEREFOR</subject><subject>CHEMISTRY</subject><subject>FOODS OR FOODSTUFFS</subject><subject>FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J</subject><subject>GENERAL METHODS OF ORGANIC CHEMISTRY</subject><subject>HUMAN NECESSITIES</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><subject>PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL</subject><subject>THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT</subject><subject>THEIR TREATMENT, NOT COVERED BY OTHER CLASSES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDxdQ3x8HdRcPMPUgjxcFUICPJ3CXUO8fT3U_B3U_B19QPK-vAwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXAEMLQ0szUxMnQ2MilAAAMm0ilQ</recordid><startdate>20090610</startdate><enddate>20090610</enddate><creator>EBEL, KLAUS</creator><creator>JOHANN, THORSTEN</creator><creator>BERGNER, EIKE JOHANNES</creator><creator>LOEBER, OLIVER</creator><scope>EVB</scope></search><sort><creationdate>20090610</creationdate><title>METHOD FOR THE PRODUCTION OF MENTHOL</title><author>EBEL, KLAUS ; 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(b) converting the optically active citronellol to optically active citronellal; (c) cyclizing the optically active citronellal to form a mixture comprising optically active isopulegol; and (d) subjecting the mixture to further processing comprising: (i) separating the optically active isopulegol from the mixture and hydrogenating the separated optically active isopulegol to form optically active menthol; or (ii) hydrogenating the optically active isopulegol in the mixture to form optically active menthol and separating the optically active menthol from the mixture.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J GENERAL METHODS OF ORGANIC CHEMISTRY HUMAN NECESSITIES METALLURGY ORGANIC CHEMISTRY PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES |
| title | METHOD FOR THE PRODUCTION OF MENTHOL |
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