Highly purified tocopheryl phosphate, process for producing the same,
analytical method therefor and cosmetic
    3.
    发明授权
    Highly purified tocopheryl phosphate, process for producing the same, analytical method therefor and cosmetic 有权
    高纯度生育磷酸酯,其生产方法,分析方法和化妆品

    公开(公告)号:US6046181A

    公开(公告)日:2000-04-04

    申请号:US342228

    申请日:1999-06-29

    摘要: Disclosed herein are a highly purified tocopheryl phosphate and/or a salt thereof (tocopheryl phosphates) wherein a P,P'-bistocopheryl hypophosphate and/or a salt thereof (P,P'-bistocopheryl diphoshates) is contained in a proportion of not higher than 3% by weight; a process for producing a highly purified tocopheryl phosphate and/or a salt thereof, which comprises the steps of reacting a tocopherol with an oxyphosphorus trihalide followed by treating with an acid or basic aqueous solution to thereby form tocopheryl phosphates (i) in which P,P'-bistocopheryl diphoshates (ii) formed as by-products are contained, hydrolyzing the P,P'-bistocopheryl diphoshates (ii) under acid condition, and, optionally, rendering the hydrolyzate neutral or basic under basic condition; and a method of analyzing tocopheryl phosphates, comprising analyzing a sample containing components (i) and (ii) with the use of a high-performance liquid chromatograph column packed with a gel of a polymethacrylate having, bonded thereto, long-chain alkyl groups. None or only an extremely minute amount of P,P'-bistocopheryl diphoshates are contained in the highly purified tocopheryl phosphates, so that the highly purified tocopheryl phosphates exhibit antioxidant and blood circulation promoting effects, have excellent water solubility, are powdery so that the handling thereof is extremely easy, are free from cutaneous irritation and allergenecity and ensure dermal safety. Therefore, the highly purified tocopheryl phosphates are useful as cosmetic ingredients. The amounts of components (i) and (ii) can be simply measured with high accuracy by the above method.

    摘要翻译: 本文公开了高纯度的生育磷酸酯和/或其盐(生育磷酸酯),其中P,P'-二生育酚低磷酸盐和/或其盐(P,P'-二生育基二磷酸酯)的含量不高于 超过3%重量; 一种生产高纯度生育磷酸酯和/或其盐的方法,其包括使生育酚与三卤氧磷反应,然后用酸或碱性水溶液处理,从而形成生育磷酸酯(i),其中P, 含有作为副产物形成的P'-二生育基二磷酸酯(ⅱ),在酸性条件下水解P,P'-二生育基二磷酸酯(ⅱ),任选地在碱性条件下使水解产物中性或碱性。 以及分析生育磷酸酯的方法,包括使用填充有与其键合的聚甲基丙烯酸酯的凝胶的高效液相色谱柱分析含有成分(i)和(ii)的样品的长链烷基。 高纯度的生育磷酸酯中没有或仅有非常少量的P,P'-二生育基二磷酸酯,因此高纯度的生育磷酸酯表现出抗氧化和促进血液循环的作用,具有优异的水溶性,是粉末状的, 它非常容易,没有皮肤刺激和过敏原,并确保皮肤安全。 因此,高纯度的生育磷酸酯可用作化妆品成分。 组分(i)和(ii)的量可以通过上述方法以高精度简单地测量。

    Metal raney catalysts and preparation of hydrogenated compounds therewith
    6.
    发明授权
    Metal raney catalysts and preparation of hydrogenated compounds therewith 失效
    金属催化剂和氢化化合物的制备

    公开(公告)号:US06245920B1

    公开(公告)日:2001-06-12

    申请号:US09451145

    申请日:1999-11-30

    IPC分类号: C07D30702

    CPC分类号: B01J25/00

    摘要: Noble metal, particularly ruthenium, Raney catalysts which can hydrogenate (1) aromaticity-exhibiting ring portions of organic compounds, (2) carboxylic acids and their ester portions (carbonyl ester groups), (3) ring portions and carboxylic acid or their ester groups in compounds having such ring portions and carboxylic acid or their ester portions, and (4) ring portions and nitrile groups of aromatic nitrile compounds and methods for the preparation of corresponding hydrogenated compounds. The methods allow preparation of hydrogenated compounds having hydrogenated aromatic ring portions, hydrogenated carbonyl ester groups, hydrogenated aromatic ring and carbonyl ester groups, or hydrogenated aromatic rings and nitrile groups under milder hydrogen pressure and temperature conditions than the conventional catalysts.

    摘要翻译: 贵金属,特别是钌,可加氢氢化(1)芳香性显示有机化合物的环部分的阮内催化剂,(2)羧酸及其酯部分(羰基酯基),(3)环部分和羧酸或其酯基 在具有这种环部分的化合物和羧酸或其酯部分中,和(4)芳族腈化合物的环部分和腈基以及制备相应的氢化化合物的方法。 该方法允许在比常规催化剂更温和的氢气压力和温度条件下,制备具有氢化芳环部分,氢化羰基酯基,氢化芳环和羰基酯基,或氢化芳环和腈基的氢化化合物。