- PROCESSES FOR THE PREPARATION OF UNSATURATED MALONATES
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Disclosed is a process for preparing unsaturated malonates and/or their isomers. The process includes the step of reacting an aldehyde and a dialkyl malonate in the presence of a Lewis acid and a carboxylic acid thereby forming an unsaturated malonate.
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Page/Page column 11
(2016/09/26)
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- 2-(ALKOXY OR ARYLOXY CARBONYL)-4-METHYL-6-(2,6,6-TRIMETHYLCYCLOHEX-1- ENYL)HEX-2-ENOIC ACID COMPOUNDS, ITS PREPARATION AND USE
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Compounds of the formula 1 wherein, R is hydrogen, alkyl or substituted alkyl, aryl or substituted aryl are useful intermediates in the synthesis of fragrance ingredients such as Ambrox 2.
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- 2-(ALKOXY OR ARYLOXY CARBONYL)-4-METHYL-6-(2,6,6-TRIMETHYLCYCLOHEX-1-ENYL)HEX-2-ENOIC ACID COMPOUNDS, ITS PREPARATION AND USE
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Compounds of the formula (1), wherein, R is hydrogen, alkyl or substituted alkyl, aryl or substituted aryl are useful intermediates in the synthesis of fragrance ingredients such as Ambrox (2).
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Page/Page column 16
(2012/07/13)
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- ORGANIC COMPOUNDS
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A process for the preparation of β,γ-unsaturated-γ,γ-disubstituted esters 1 with high E/Z- and β,γ/α,β-ratios, Formula (1) by reacting at a temperature of between about 130 and 170 degrees centigrade the conjugated malonate Formula (3) with, a group I, II
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Page/Page column 11-12
(2011/07/07)
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- PROCESS FOR THE PREPARATION OF BETA-GAMMA ENE CARBONYL DERIVATIVES
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The present invention relates to a preparation of β-γ ene carboxylic or ketone derivatives, which may also have particular requirement on the configuration of the carbon-carbon double bond. The method requires a thermal treatment of α-β unsaturated malona
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Page/Page column 8; 9
(2008/06/13)
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