78102-70-2

Upstream product

• 78102-68-8 2,4-Dihydroxyspiro<5.5>undeca-1,4-dien-3-one 
• 122-04-3 4-nitro-benzoyl chloride 
• 78380-98-0 2-Hydroxy-4-(4-nitrobenzoyloxy)-spiro<5.5>undeca-1,4-dien-3-on 
• 1712-84-1 p-nitrobenzoyl peroxide 
• 78380-85-5 Sodium; 4-oxo-spiro[5.5]undec-2-en-2-olate 
• 70990-65-7 3,4-Dihydroxyspiro<5.5>undecan-3-en-4-one 

Relevant academic research and scientific papers

Introduction of Oxygen Functions into the α-Position of β-Diketone, 4. Direct Acyloxylation of 1,3-Cyclohexanediones by Diacyl Peroxides

Direct acyloxylation of 1,3-cyclohexanediones 1 leads only by way of exception to the formation of monoacyloxylated products 4.However, their sodium salts 5 yield exclusively the immediate reaction products 8 of a bisacyloxylation.On the other hand, these products are unstable in the presence of base, and they experience a migration of an acyl group and loss of one mol of carboxylic acid yielding cyclohexadienones 9.The mechanism of this new rearrangement is described.Starting from products of a benzyloxycarbonyloxylation a convenient synthesis of reductones is described.

1,2,3-Cyclohexanetrione/2,6-Dihydroxy-2,5-cyclohexadien-1-one Isomerization: A Facile Synthesis of 2,6-Dioxy-substituted 2,5-Cyclohexadien-1-ones

Hitherto unknown 1,2,3-cyclohexanetriones 5 masked as chlorohydrins 2 or as chlorohydrin esters 4 are easily rearranged yielding the corresponding 2,6-dihydroxy-2,5-cyclohexadien-1-ones 6 or their ester 8.