53941-13-2

Upstream product

• 53319-91-8 (E)-4-(2,6,6-trimethylcyclohex-1-en-1-yl)but-3-en-2-yl acetate 
• 446293-91-0 4-(2,6,6-trimethyl-cyclohex-1-enyl)-butan-2-ol 
• 31089-73-3 1-(2',6',6'-trimethyl-1'-cyclohexenyl)-3-buten-1-one 
• 497-19-8 sodium carbonate 
• 79-77-6 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3-buten-2-one 
• 17283-81-7 4-(2,6,6-Trimethyl-cyclohex-1-enyl)-butan-2-on 
• 53941-08-5 trans-β-ionone p-tosylhydrazone 

Downstream Products

• 23696-85-7 1-(2,6,6-trimethyl-1,3-cyclohexadiene-1-yl)-2-butene-1-one 

Relevant academic research and scientific papers

Industrial manufacturing method of damascenone

The invention provides an industrial manufacturing method of damascenone. The industrial manufacturing method is characterized in that damascenone is obtained by oxidizing a compound A. The structural formula of the compound A is shown in the description. The production process and the synthesis route are optimized, in the production course, fewer side reactions are generated, aftertreatment is convenient, production conditions are mild, and the industrial manufacturing method is suitable for industrial production modes.

Isolation and synthesis of 3-(2-butenyl)-2,4,4-trimethyl-2-cyclohexen-1-one. Regiospecific oxidation of 1-(2-butenyl)-2,6,6-trimethylcyclohexene

(E)- and (Z)-3-(2-butenyl)-2,4,4-trimethyl-2-cyclohexen-1-one 1 and 2 have been isolated from an absolue of Osmanthus Fragrance Lour, and a fusel oil concentrate.Structural proof for these compounds has been obtained via their synthesis from β-ionone.The key step in this synthesis is the regio-specific oxidation of 1-(2-butenyl)-2,6,6-trimethylcyclohexene.

Reductive displacement of allylic acetates by hydride transfer via catalytic activation by palladium(0) complexes

Allylic acetates are reduced to alkenes by reductive displacement by hydride reagents via catalytic activation with Pd(0) complexes. In the absence of hydrides, allylic acetates afford conjugated dienes in DMSO solvent.

Alkenoyl-cyclohexadienes

New cycloaliphatic unsaturated ketones and their use as perfuming and odour-modifying agents in the manufacture of perfumes and perfumed products, and as flavouring and taste-modifying agents in the preparation of foodstuffs in general and imitation flavours for foodstuffs, beverages, animal feeds, pharmaceutical preparations and tobacco products. Methods for the preparation of said cycloaliphatic unsaturated ketones.