申请人:Eastman Chemical Company
公开号:US20150126759A1
公开(公告)日:2015-05-07
Hydroxytyrosol derivative compositions, methods for their manufacture, and their use in personal care products are disclosed. Lipophilic hydroxytyrosol carbonate ester compound can be made by oxidizing a substituted hydroxybenzaldehyde compound with an oxidizing agent such as hydrogen peroxide under mild conditions. The process involves enzymatic esterification of 4-(2-hydroxyethyl)phenol to form the corresponding ester, the introduction of a formyl group ortho to the phenolic hydroxyl group of the ester to form a lipophilic formyltyrosol ester; oxidation of the lipophilic formyltyrosol ester with a peroxide compound to form a lipophilic hydroxytyrosol ester compound; and reaction of lipophilic hydroxytyrosol ester compound with carbonic acid ester derivatives to form a lipophilic hydroxytyrosol carbonic ester compound. These compounds are useful is a wide variety of personal care compositions as anti-aging compounds that are stable against oxidation.
披露了羟基酪醇衍生物组合物的制造方法,以及它们在个人护理产品中的应用。脂溶性羟基酪醇碳酸酯化合物可以通过将取代羟基苯甲醛化合物与氧化剂(如过氧化氢)在温和条件下氧化而制得。该过程涉及酶催化的4-(2-羟乙基)酚酯化反应,形成相应的酯化物,将羟基酯的酚羟基正对位引入一个甲酰基,形成一个脂溶性甲酰酪醇酯;将脂溶性甲酰酪醇酯与过氧化物化合物氧化,形成脂溶性羟基酪醇酯化合物;以及将脂溶性羟基酪醇酯化合物与碳酸酯衍生物反应,形成脂溶性羟基酪醇碳酸酯化合物。这些化合物对于各种个人护理产品都很有用,作为抗衰老化合物,具有抗氧化稳定性。