57374-49-9Relevant articles and documents
METHODS OF PREPARING a,?-UNSATURATED OR a-HALO KETONES AND ALDEHYDES
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Paragraph 0087; 0088; 0089, (2017/07/14)
Copper(II) bromide mediated oxidation of acylated enol and use of the reaction in the synthesis of α,β-unsaturated or α-bromo ketones or aldehydes are disclosed. The method provides an efficient and practical process for manufacturing dehydrohedione (DHH) and many other versatile α,β-unsaturated or α-bromo ketones or aldehydes in large scales to avoid using precious metal compounds.
Process for perfuming textiles
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, (2008/06/13)
We describe a process for perfuming fabrics washed in the presence of a lipase-containing detergent and, optionally, subsequently treated with a fabric softener, said process being characterized in that said detergent and/or said fabric softener contains a compound of formula STR1 wherein a. R represents a radical derived from an fragrant alcohol of formula ROH and Y represents a C7 to C24 linear or branched, saturated or unsaturated alkyl radical, or a --(CH2)n COOR group wherein R is defined as above and n is an integer from 0 to 6; or p1 b. Y represents a C7 to C24 linear or branched, saturated or unsaturated alkyl radical and R represents a group of formula STR2 wherein, either R1 represents hydrogen and R2 represents an alkylidene radical derived from a fragrant aldehyde of formula STR3 or R2 represents an alkylidene radical and R1 an alkyl radical, R1 and R2 being then derived from an fragrant ketone of formula STR4 and, optionally, being part of a ring such as indicated by the dotted line which contains 5 to 18 carbon atoms and can be substituted. The process has the advantage of providing an effect of slow diffusion ("slow release") of said fragrant alcohol, aldehyde or ketone, thus prolonging the odor effect of the latter on fabrics.
