Trimethylaluminum(TMA), usually used in organic catalysis and organic synthesis, was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
用新的催化体系（铁-锑复合催化剂）催化三乙基铝（TEA）与溴甲烷进行烷基交换反应合成三甲基铝（TMA）。
At present, we could not get EGCG from chemical synthesis in addition to extracting from tea.
目前，只能从茶叶中提取到EGCG，还不能进行化学合成。
At present, we could not get EGCG from chemical synthesis in addition to extracting from tea.
目前，只能从茶叶中提取到EGCG，还不能进行化学合成。
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