Abstract
Cashew nut shell liquid (CNSL) is a largely available by-product of the cashew agro-industry. In this paper, the main constituents (cardanol, cardol and methylcardol) obtained after separation of the CNSL mixture have been used as starting material to prepare a variety of novel mono- and bis-benzoxazines via cyclization reactions with formaldehyde and aromatic amine derivatives under mild conditions. These model reactions were successfully extended to the cardanol and cardols mixture affording the one pot synthesis monoand bis-benzoxazines.
Keywords: Benzoxazine, Bis-benzoxazine, Cardanol, Cardol, CNSL, Methylcardol
Current Organic Chemistry
Title:Solvent Free Synthesis of Novel Mono- and Bis-Benzoxazines from Cashew Nut Shell Liquid Components
Volume: 16 Issue: 21
Author(s): Orazio A. Attanasi, Mohamed S. Behalo, Gianfranco Favi, Diego Lomonaco, Selma E. Mazzetto, Giuseppe Mele, Iolanda Pio and Giuseppe Vasapollo
Affiliation:
Keywords: Benzoxazine, Bis-benzoxazine, Cardanol, Cardol, CNSL, Methylcardol
Abstract: Cashew nut shell liquid (CNSL) is a largely available by-product of the cashew agro-industry. In this paper, the main constituents (cardanol, cardol and methylcardol) obtained after separation of the CNSL mixture have been used as starting material to prepare a variety of novel mono- and bis-benzoxazines via cyclization reactions with formaldehyde and aromatic amine derivatives under mild conditions. These model reactions were successfully extended to the cardanol and cardols mixture affording the one pot synthesis monoand bis-benzoxazines.
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Cite this article as:
A. Attanasi Orazio, S. Behalo Mohamed, Favi Gianfranco, Lomonaco Diego, E. Mazzetto Selma, Mele Giuseppe, Pio Iolanda and Vasapollo Giuseppe, Solvent Free Synthesis of Novel Mono- and Bis-Benzoxazines from Cashew Nut Shell Liquid Components, Current Organic Chemistry 2012; 16 (21) . https://dx.doi.org/10.2174/138527212804004616
DOI https://dx.doi.org/10.2174/138527212804004616 |
Print ISSN 1385-2728 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5348 |
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