79699-87-9

Upstream product

• 67-56-1 methanol 
• 75594-65-9 2,2,4,4,6,6-hexachloro-5,5-dimethyl-1,3-cyclohexanedione 
• 7298-86-4 2,2-dichloro-5,5-dimethylcyclohexane-1,3-dione 
• 21428-81-9 2,2,4,4-tetrachlorodimedone 
• 17257-68-0 2,2,4-trichlorodimedone 
• 17554-80-2 2,2,4,6-tetrachlorodimedone 
• 75594-58-0 2,4,6-trichlorodimedone 
• 75594-54-6 2,2,4,4,6-pentachlorodimedone 
• 343772-88-3 2,4,4,6-tetrachlorodimedone 
• 75594-57-9 2,4,4-trichlorodimedone 
• 75594-56-8 2,4-dichlorodimedone 
• 126-81-8 dimedone 
• 75594-60-4 2,2,4,6,6-pentachloro-5,5-dimethyl-3-cyclohexenone 

Relevant academic research and scientific papers

HEXACHLORODIMEDONE: RING OPENING AND INTRAMOLECULAR SUBSTITUTION OF HALOGEN. PREPARATION OF γ,δ-DIKETOACIDS AND ESTERS.

The β-dione system of 2,2,4,4,6,6-hexachloro-5,5-dimethyl-1,3-cyclohexanedione (1) is cleaved by weak base in methanol or aqueous organic solvent.The intermediate enolate ester 3a (resp. the carboxylate) is competitively protonated or chlorinated by 1.Pro

SYNTHESIS OF 5-ALKYL-3,3-DIMETHYL-1,2,4-CYCLOPENTANETRIONES, INVOLVING HYDROGENATION OF 2-ACYLDIMEDONES AND POLYCHLORINATION

2-Alkyldimedones, obtained from 2-acyldimedones, were converted into 5-alkyl-3,3-dimethyl-1,2,4-cyclopentanetriones in 40-70 percent overall yields, calculated on dimedone (Alkyl = Me, Et, n-Pr, n-Bu and i-Bu).The synthesis involved ring contraction of 2-

PREPARATION AND ENOL ALLYL REARRANGEMENT OF POLYCHLORINATED DIMEDONE AND 4,4-DIMETHYL-1,3-CYCLOPENTANEDIONE DERIVATIVES

The 2-position in 5,5-dimethyl-1,3-cyclohexanedione (dimedone) and in 4,4-dimethyl-1,3-cyclopentanedione or their derivatives is completely and exclusively chlorinated with chlorine in dichloromethane.Dimethylformamide-hydrogen chloride mixtures, especial