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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Preparation of Artificial Urushi via an Environmentally Benign Process
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Preparation of Artificial Urushi via an Environmentally Benign Process

机译：通过环境良性过程制备人造Urushi

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摘要

"Artificial urushi" has been developed by laccase-catalyzed curing of new urushiol analogues. The analogues were designed and conveniently synthesized by regioselective acylation of phenol derivatives having a primary alcohol with unsaturated fatty acids using lipase as catalyst. The curing of the catechol derivative having a linolenoyl group proceed- ed in the presence of acetone powder from Chinese urushi, yielding the crosslinked film ("artificial urushi") with high hardness and gloss surface, which are comparable with those of natural urushi coating. The analogues obtained from va-nillyl alcohol were also cured. FT-IR monitoring of the curing showed that the crosslinking mechanism was similar to that of the natural urushi. The curing of the urushiol analogues in the presence of starch-urea phosphate took place to give the artificial urushi consisting exclusively of synthetic compounds.
机译：通过人造漆酶催化的新的漆酚类似物的固化，已经开发了“人造漆酚”。通过使用脂肪酶作为催化剂，通过对具有伯醇的酚衍生物与不饱和脂肪酸进行区域选择性酰化来设计并方便地合成类似物。在有来自中国漆树的丙酮粉末的存在下，进行具有亚油酰基的邻苯二酚衍生物的固化，得到具有高硬度和光泽表面的交联膜（“人造漆”），其与天然漆树涂层的交联膜可比。将从戊醇得到的类似物也被固化。 FT-IR监测固化结果表明，交联机理与天然漆石相似。在淀粉-脲磷酸酯的存在下对漆酚类似物进行固化，从而得到仅由合成化合物组成的人造漆酚。

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