78102-79-1Relevant academic research and scientific papers
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
Schank, Kurt,Blattner, Rudolf,Bouillon, Guenter
, p. 1951 - 1957 (2007/10/02)
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.
Introduction of Oxygen Functions into the α-Position of β-Diketone, 4. Direct Acyloxylation of 1,3-Cyclohexanediones by Diacyl Peroxides
Schank, Kurt,Blattner, Rudolf,Schmidt, Volker,Hasenfratz, Hermann
, p. 1938 - 1950 (2007/10/02)
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.
