609-69-8Relevant articles and documents
Production process of cyclohexanecarboxylic acid
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Paragraph 0018; 0023; 0024, (2018/09/08)
The invention discloses a production process of cyclohexanecarboxylic acid and belongs to the field of chemical synthesis. Cyclohexene oxide is used herein as a starting material to react with carbondioxide, Mg powder and TMSCl (trimethylsilyl chloride); Pd/C catalytic hydrogenation is performed in the presence of an acid to obtain the cyclohexanecarboxylic acid. The production process has good safety and good operational simplicity and is suitable for industrial production.
Oxidative decarboxylation of cyclohexane monocarboxylic acid as a degenerate branching chain reaction II. Mechanism
Heberger,Keszler,Vidoczy,Gal,Cotarca,Delogu
, p. 1303 - 1307 (2007/10/02)
Based on the experimental results obtained studying the oxidative decarboxylation of cyclohexane monocarboxylic acid and published earlier, a mechanism is suggested, according to which in the thermal oxidation two main chain carrier radicals exist: tertiary and secondary peroxy radicals yielding cyclohexanone as well as hydroxy and keto acids in parallel reaction sequences. Carbon dioxide is formed in both pathways independently. The corresponding hydroperoxide molecules, formed during oxidation, decompose partly into radicals and partly into molecules resulting in degenerate branching and chemiluminescence phenomena, respectively. The rate determining termination is the cross combination process between secondary and tertiary peroxy radicals. The combinatorial generation of the mechanism of the thermal process and its reduction enabled the construction of the sequence network of the formation of products indicating that the primary attack of the hydrogen abstraction (secondary or tertiary) determines the product distribution.
Selective transformation of nitriles into amides and carboxylic acids by an immobilized nitrilase
Klempier,De Raadt,Faber,Grieng
, p. 341 - 344 (2007/10/02)
Using an immobilized nitrilase from Rhodococcus sp. mild and selective hydrolysis of nitriles can be achieved even in the presence of acid or base sensitive groups under neutral conditions. This method is applicable to a broad range of substrates as exemplified by aliphatic, alicyclic, heterocyclic and carbohydrate type nitriles.