一种香料合成中高效缩合工艺
本发明涉及香料技术领域,具体涉及一种香料合成中高效缩合工艺,包括以下步骤:将环氧苯乙烷加入到甲基化试剂中,在酸催化下进行反应;反应结束后,加入碱性溶液调节pH至7‑8,静置分层,取有机相;对有机相先50‑70℃蒸去溶剂,再进行精馏,即得苯乙醛二甲缩醛。本发明提供的香料——苯乙醛二甲缩醛的合成中高效缩合工艺,成本低,工艺工序简单,生产能耗低,且收率高,总收率达到93%以上,同时产品的质量好,纯度达98.5%及以上,工业化应用前景广阔。
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