501-24-6Relevant articles and documents
Process for isolation of cardanol from technical cashew (Anacardium occidentale L.) nut shell liquid.
Phani Kumar,Paramashivappa,Vithayathil,Subba Rao,Srinivasa Rao
, p. 4705 - 4708 (2002)
Commercially available technical cashew (Anacardium occidentale L.) nut shell liquid (CNSL) contains mainly cardanol (decarboxylated anacardic acid) and cardol. Cardanol, the monophenolic component of technical CNSL, is widely used as a synthon for the preparation of a number of polymers and agricultural products. This paper describes the separation of cardanol from toxic cardol. Technical CNSL was dissolved in a mixture of methanol and ammonium hydroxide (8:5) and extracted with hexane to obtain cardanol. The resultant methanolic ammonia layer was extracted with a mixture of ethyl acetate and hexane to yield cardol. This is the first industrially feasible process based on solvent extractions for the isolation of cardanol from technical CNSL.
Unequivocal structural assignments of three cardanol derivatives: An experimental and theoretical approach
Barbosa, Layla R.,Souza, Daiane S.,Queiroz, Luiz H.K.,Neto, Alvaro C.,de Lima, Denis P.,Beatriz, Adilson,Rom?o, Wanderson,de Castro, Eustaquio V.R.,Lacerda, Valdemar
, p. 357 - 366 (2018/09/18)
Cardanol was obtained by vacuum distillation of ‘‘cashew nut shell liquid’’ (CNSL). Cardanol is a by-product of cashew production and a building block for chemical synthesis; cardanol and its derivatives can be used for different types of applications. Three of these compounds are the subject of the present NMR study and theoretical comparison. 1H and 13C NMR signals were assigned using 1D and 2D NMR experiments. The DFT/B3LYP method using the cc-pVTZ basis set was employed for the calculations of the 1H and 13C NMR chemical shifts (δ). The obtained data were used as an auxiliary tool for unequivocal assignment of all 1H and 13C NMR signals. For these compounds, the adopted theoretical model was sufficient to obtain a good description of the chemical shifts.
Valorization of Madagascar's CNSL via the synthesis of one advanced intermediate (3-Pentadecylcyclohexanone)
Rahobinirina, Andrianarivo Irène,Rakotondramanga, Maonja Finaritra,Berlioz-Barbier, Alexandra,Métay, Estelle,Ramanandraibe, Voahangy,Lemaire, Marc
supporting information, p. 2284 - 2289 (2018/03/26)
A unique advanced intermediate: 3-Pentadecylcyclohexanone was synthetized from the crude product which contained a mixture of cardanol, cardol and 2-methylcardol, which was hydrogenated onto Pd/C at 80 °C. From this alkylated cyclohexanone: C15 alkylated adipic acid, caprolactam, caprolactone, were synthetized in high yields, such products may have many potentially applications in polymer chemistry. The condensation of the 3-pentadecyl-cyclohexanone and triethylene glycol in oxidative or reductive conditions gave aryl ether and cyclohexyl ether, this may be a way to prepare intermediate for surfactant chemistry. Therefore we show that Cashew Nut Shell Liquid (CNSL) may lead to numerous useful compounds thank to the preparation of a unique advanced intermediate.
