49859-69-0

Upstream product

• 5369-61-9 5-hydroxy-5-methyl-hex-3-en-2-one 
• 78-85-3 2-methylpropenal 
• 67-64-1 acetone 
• 201230-82-2 carbon monoxide 
• 74-88-4 methyl iodide 
• 78-79-5 isoprene 
• 28332-44-7 5-methylhex-4-en-2-one 
• 5369-64-2 5-hydroperoxy-5-methyl-hex-3-en-2-one 

Downstream Products

• 92024-32-3 2-Methyl-hexadien-(1,3)-on-⁽⁵⁾-2,4-dinitrophenyl-hydrazon 

Relevant academic research and scientific papers

SYNTHESIS WITH MANGANIC SALTS; PART III: SYNTHESIS OF 1,4-DIKETONES THROUGH MANGANIC ACETATE-MEDIATED ADDITION OF KETONE TO ISOPENTENYL SULFONES. ACETOXYLATION OF Β,Γ-UNSATURATED KETONES BY MANGANOUS AND CUPRIC ACETATES

Conditions have been found to selectively add ketones to isopentenyl sulfones.The major product, a ketone bearing a methylene group at the γ position, gave upon ozonolysis the corresponding 1,4-diketone.The usefulness of the overall process was illustrated by the efficient syntheses of jasmone and of one half of pyrenophorine.The γ-acetoxy conjugated enones that invariably formed during these additions resulted from the oxidation of an isomeric β,γ-unsaturated ketone by manganous and cupric acetates.Such an acetoxylation has been used to prepare 6β-acetoxy-cholestenone from cholesterol and also to prepare chrysanthemic acid.