Minigher Andrea, Benedetti Elena, De Giacomo Ornela, Campaner Pietro, Aroulmoji Vincent
Cimteclab Srl, Area Science Park, Padriciano 99, 34012 Trieste, Italy.
Nat Prod Commun. 2009 Apr;4(4):521-8.
Benzoxazines are a class of phenolic compounds extensively studied in polymer science because of their properties as fiber reinforcements, fire-retardants and curing agents. In this article is described a solvent-less process, based on a Mannich reaction involving a primary amine and an aldehyde, for the preparation of new benzoxazines deriving from cardanol (a well known phenol obtained as a renewable organic resource and harmful by-product of the cashew industry). Particular attention is given to the synthesis and chemical characterization (both by 1H NMR spectroscopy and HPLC), while the thermal polymerization process has been monitored by differential scanning calorimetry.
苯并恶嗪是一类在高分子科学中被广泛研究的酚类化合物，因其具有作为纤维增强剂、阻燃剂和固化剂的特性。本文描述了一种基于涉及伯胺和醛的曼尼希反应的无溶剂工艺，用于制备源自腰果酚（一种作为可再生有机资源获得的知名酚类，也是腰果工业的有害副产品）的新型苯并恶嗪。特别关注了合成和化学表征（通过1H NMR光谱和HPLC），同时通过差示扫描量热法监测了热聚合过程。
