Guan Yan
2008
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Journal
Chemistry and Industry of Forest Products
Abstract
A new route to synthesize p-menthanediamine(MDA)from terpin hydrate was conducted in the paper,through which di-azido-p-menthane is synthesized at an average yield 73.1 % by reaction between terpin hydrate and sodium azide catalyzed by sulphuric acid followed by hydrogenation catalyzed by Lindlar catalyst to give MDA at an average yield of 86.3 %.The total yield is 63.1 % based on the terpin hydrate.The purified product MDA was analyzed with GC,and its chemical structure was identified through GC-MS,FTIR,1H NMR.Thereafter,the product was applied as a curing agent to prepare an epoxy-resin.Results showed that it has properties similar to the marketed p-menthane-1,8-diamine.The synthetic route was proved to be effective and feasible for the preparation of MDA.