Cashew nut shell liquid (CNSL) is obtained as a by-product in the production of cashew kernels. With an increasing production of raw cashew nuts, Brazil is also one of the leading world producers of CNSL1. Commercial CNSL is chiefly cardanol (1)2, a mixture of 3-alkylphenols (Figure 1) mainly produced by decarboxylation of anarcadic acid (2), the primary constituent of the...
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