Ethyl cyclohexanecarboxylate, reaction with

Methylsulfinyl cyclohexyl ketone is prepared by reaction of the reagent (0.08 mole) with 6.24 g (0.04 mole) of ethyl cyclohexanecarboxylate yielding about 7 g of product, mp 62-63° after recrystallization from isopropyl ether. 

The arylation reaction of 1,3-dicarbonyl compounds was extended to the use of variously substituted triarylbismuth carbonates. The electronic properties of the substituents of the arylbismuth do not influence significantly the overall yield of arylated products. Arylation of ethyl 2-oxo-cyclohexanecarboxylate (34) with substituted triarylbismuth carbonate derivatives afforded the products in yields ranging from 81 to 90%. 

HMnOi - + MnOi" + OH accounts for the major reaction pathway. In the reaction with hydroxy-cyclohexanecarboxylic acids,a complex pH dependence is observed, the mechanism involving complex formation between the neutral hydroxy-acid and the permanganate. The intermediate complex is, however, considered to undergo a (reversible) deprotonation prior to the rate-determining electron transfer step. Acid-dependent and -independent paths have also been described in the oxidation of ethyl acetate in perchloric acid. The mechanism of the fast reaction between Mn " and nitrite has been investigated in glycine and phthalic acid buffers. The rate law may be expressed as... 

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