121668-40-4

Upstream product

• 121668-39-1 2,2-dichloro-4-phenyldimedone 
• 86396-24-9 4-fenyldimedone 

Downstream Products

• 121668-41-5 α,α-dichloro-γ-dichloroacetyl-γ-phenyl-β,β-dimethyl-γ-butyrolactone 
• 121668-43-7 3,5-dichloro-2-dichloromethylene-4,4-dimethyl-5-methoxycarbonyl-3-phenyltetrahydrofuran 
• 121668-42-6 methyl 2,2,4,6,6-pentachloro-3,3-dimethyl-4-phenyl-5-oxohexanoate 

Relevant academic research and scientific papers

RING OPENING OF 2,2,4,6,6-PENTACHLORO-4-FENYLDIMEDONE AFFORDING AN α,α-DICHLORO-γ-BUTYROLACTONE

An α,α-Dichloro-γ-butyrolactone 4 was formed after ring opening of 2,2,4,6,6-pentachloro-4-fenyldimedone with NaOAc-HOAc in aqueous dioxane.The ring opening in methanol gave a δ-ketoester 5 which was cyclised with Na2CO3 to afford the cyclic enol ether 6.