Process for manufacture of optically active 2-(acyloxymethyl)-1,3-oxathiolanes
    1.
    发明授权
    Process for manufacture of optically active 2-(acyloxymethyl)-1,3-oxathiolanes 失效
    光学活性2-(酰氧基甲基)-1,3-氧硫杂环戊烷的制备方法

    公开(公告)号:US08354546B2

    公开(公告)日:2013-01-15

    申请号:US13403255

    申请日:2012-02-23

    申请人: John R. Peterson

    发明人: John R. Peterson

    IPC分类号: C07D327/04

    摘要: There is provided a process for manufacture of optically-active, 2-(acyloxymethyl)-1,3-oxathiolanes of Formula I comprising a preparation of a racemic compound and an enzyme-catalyzed kinetic resolution of the enantiomers. The invention may further provide for the esterification and racemization of the by-product of the enzymatic reaction. In this manner, 2(R)-(benzoyloxymethyl)-1,3-oxathiolane is prepared as a useful intermediate for manufacture of the anti-HIV drug Apricitabine.

    摘要翻译: 提供了制备式I的光学活性的2-(酰氧基甲基)-1,3-氧硫杂环戊烷的方法,其包括外消旋化合物的制备和对映异构体的酶催化动力学拆分。 本发明还可以进一步提供酶反应的副产物的酯化和外消旋化。 以这种方式,制备2(R) - (苯甲酰氧基甲基)-1,3-氧硫杂环戊烷作为制备抗HIV药物阿利替他的有用中间体。

    LIGNIN PREPARATIONS ISOLATED FROM PLANT MATERIAL, AND METHODS FOR THEIR ISOLATION AND USE
    2.
    发明申请
    LIGNIN PREPARATIONS ISOLATED FROM PLANT MATERIAL, AND METHODS FOR THEIR ISOLATION AND USE 审中-公开
    从植物材料分离的木瓜制备方法及其分离和使用方法

    公开(公告)号:US20120022240A1

    公开(公告)日:2012-01-26

    申请号:US13252935

    申请日:2011-10-04

    IPC分类号: C08H7/00

    摘要: Lignin polymers having distinctive properties, including a generally high molecular weight and generally homogeneous size distribution, as well as preservation of native reactive side groups, are isolated by solvent extraction of plant materials. Methods for isolation of lignin polymers, and for use of the isolated lignin polymers are disclosed. Compositions containing lignin isolated from plant materials, such as carbon fiber composites, resins, adhesive binders and coatings, polyurethane-based foams, rubbers and elastomers, plastics, films, paints, nutritional supplements, food and beverage additives are disclosed. Xylose and xylose derivatives, furfural, fermentable sugars, cellulose and hemi-cellulose products may be used directly or further processed. The lignin polymers and other plant-derived products disclosed herein may be produced in abundance at low cost, and may be used as substitutes for feedstocks originating from fossil fuel or petrochemical sources in the manufacture of various products.

    摘要翻译: 通过植物材料的溶剂萃取分离具有特征性质的木质素聚合物,包括通常高分子量和通常均匀的粒度分布,以及天然活性侧基的保存。 公开了分离木质素聚合物的方法和用于分离的木质素聚合物的方法。 公开了包含从植物材料分离的木质素的组合物,例如碳纤维复合材料,树脂,粘合剂粘合剂和涂层,聚氨酯基泡沫,橡胶和弹性体,塑料,薄膜,油漆,营养补充剂,食品和饮料添加剂。 木糖和木糖衍生物,糠醛,可发酵糖,纤维素和半纤维素产品可直接使用或进一步加工。 本文公开的木质素聚合物和其它植物衍生产品可以以低成本丰富地生产,并且可以用作来自化石燃料或石油化学源的原料的替代品,用于制造各种产品。

    RECOVERY OF LIGNIN AND WATER SOLUBLE SUGARS FROM PLANT MATERIALS
    4.
    发明申请
    RECOVERY OF LIGNIN AND WATER SOLUBLE SUGARS FROM PLANT MATERIALS 有权
    从植物材料中恢复木瓜和水溶性糖

    公开(公告)号:US20130005952A1

    公开(公告)日:2013-01-03

    申请号:US13612453

    申请日:2012-09-12

    IPC分类号: C08L97/00 C12N5/04

    摘要: In one aspect, a process for treating woody plant material is provided, the process involving contacting the plant material with a continuous flow of an aqueous ethanol solution at elevated temperature and pressure under conditions that promote extraction of ethanol-soluble lignin from the plant material and retention of hemicellulose sugars, xylose and cellulose in the treated plant material solids. In another aspect, a process for extracting hemicellulose sugars from lignin-depleted plant material solids is provided, the process involving contacting lignin-depleted plant material with water at elevated temperature and pressure under conditions that promote extraction of hemicellulose sugars from the plant material; and recovering hemicellulose sugars from the liquid mixture.

    摘要翻译: 在一个方面,提供了一种用于处理木本植物材料的方法,该方法包括在升高的温度和压力下,在促进从植物材料中提取乙醇可溶性木质素的条件下使植物材料与连续流动的乙醇水溶液接触, 在处理的植物材料固体中保留半纤维素糖,木糖和纤维素。 在另一方面,提供了从木质素贫乏的植物材料固体中提取半纤维素糖的方法,该方法涉及在促进从植物材料中提取半纤维素糖的条件下,在高温和高压下使木质素贫化的植物材料与水接触; 并从液体混合物中回收半纤维素糖。

    Methods for isolating and harvesting lignin and isolated lignin preparations produced using the methods
    5.
    发明授权
    Methods for isolating and harvesting lignin and isolated lignin preparations produced using the methods 失效
    使用该方法分离和收获木质素和分离的木质素制剂的方法

    公开(公告)号:US08053566B2

    公开(公告)日:2011-11-08

    申请号:US12203057

    申请日:2008-09-02

    IPC分类号: C08H7/00 C08L97/00

    摘要: Lignin polymers having distinctive properties, including a generally high molecular weight and generally homogeneous size distribution, as well as preservation of native reactive side groups, are isolated by solvent extraction of plant materials. Methods for isolation of lignin polymers, and for use of the isolated lignin polymers are disclosed. Compositions containing lignin isolated from plant materials, such as carbon fiber composites, resins, adhesive binders and coatings, polyurethane-based foams, rubbers and elastomers, plastics, films, paints, nutritional supplements, food and beverage additives are disclosed. Xylose and xylose derivatives, furfural, fermentable sugars, cellulose and hemi-cellulose products may be used directly or further processed. The lignin polymers and other plant-derived products disclosed herein may be produced in abundance at low cost, and may be used as substitutes for feedstocks originating from fossil fuel or petrochemical sources in the manufacture of various products.

    摘要翻译: 通过植物材料的溶剂萃取分离具有特征性质的木质素聚合物,包括通常高分子量和通常均匀的粒度分布,以及天然活性侧基的保存。 公开了分离木质素聚合物的方法和用于分离的木质素聚合物的方法。 公开了包含从植物材料分离的木质素的组合物,例如碳纤维复合材料,树脂,粘合剂粘合剂和涂层,聚氨酯基泡沫,橡胶和弹性体,塑料,薄膜,油漆,营养补充剂,食品和饮料添加剂。 木糖和木糖衍生物,糠醛,可发酵糖,纤维素和半纤维素产品可直接使用或进一步加工。 本文公开的木质素聚合物和其它植物衍生产品可以以低成本丰富地生产,并且可以用作来自化石燃料或石油化学源的原料的替代品,用于制造各种产品。

    Recovery of lignin and water soluble sugars from plant materials
    6.
    发明授权
    Recovery of lignin and water soluble sugars from plant materials 有权
    从植物材料回收木质素和水溶性糖

    公开(公告)号:US08822657B2

    公开(公告)日:2014-09-02

    申请号:US13612453

    申请日:2012-09-12

    IPC分类号: C07G1/00

    摘要: In one aspect, a process for treating woody plant material is provided, the process involving contacting the plant material with a continuous flow of an aqueous ethanol solution at elevated temperature and pressure under conditions that promote extraction of ethanol-soluble lignin from the plant material and retention of hemicellulose sugars, xylose and cellulose in the treated plant material solids. In another aspect, a process for extracting hemicellulose sugars from lignin-depleted plant material solids is provided, the process involving contacting lignin-depleted plant material with water at elevated temperature and pressure under conditions that promote extraction of hemicellulose sugars from the plant material; and recovering hemicellulose sugars from the liquid mixture.

    摘要翻译: 在一个方面,提供了一种用于处理木本植物材料的方法,该方法包括在升高的温度和压力下,在促进从植物材料中提取乙醇可溶性木质素的条件下使植物材料与连续的乙醇水溶液流接触, 在处理的植物材料固体中保留半纤维素糖,木糖和纤维素。 在另一方面,提供了从木质素贫乏的植物材料固体中提取半纤维素糖的方法,该方法涉及在促进从植物材料中提取半纤维素糖的条件下,在高温和高压下使木质素贫化的植物材料与水接触; 并从液体混合物中回收半纤维素糖。

    METHOD FOR EVALUATION OF LIGNIN
    8.
    发明申请
    METHOD FOR EVALUATION OF LIGNIN 审中-公开
    方法评估LIGNIN

    公开(公告)号:US20140134745A1

    公开(公告)日:2014-05-15

    申请号:US13677702

    申请日:2012-11-15

    IPC分类号: G01N33/00 G06F17/18

    摘要: According to one aspect of the present method, a method for evaluation of lignin may comprise the steps of: providing lignin from a source, wherein the composition of lignin is unknown; analyzing the lignin by molecular spectroscopy methods and/or physical-chemical analysis; determining the composition of the lignin; and using the determination of the composition to predict at least one biobased product produced from the lignin. Within the method, a statistical analysis of the lignin may provide a prediction for one or more products produced and/or the yield of one or more products.

    摘要翻译: 根据本发明方法的一个方面,用于木质素评估的方法可以包括以下步骤:从源提供木质素,其中木质素的组成是未知的; 通过分子光谱法和/或物理化学分析分析木质素; 确定木质素的组成; 并且使用组合物的测定来预测由木质素产生的至少一种生物基产物。 在该方法中,木质素的统计分析可以为一种或多种所产生的产品和/或一种或多种产品的产量提供预测。

    Method for manufacture of 2-oxoimidazolidines
    9.
    发明授权
    Method for manufacture of 2-oxoimidazolidines 失效
    2-氧代咪唑烷的制备方法

    公开(公告)号:US08431699B2

    公开(公告)日:2013-04-30

    申请号:US12714614

    申请日:2010-03-01

    IPC分类号: C07D233/36 C07D295/135

    CPC分类号: C07D233/36

    摘要: There is provided a method for manufacture of 2-oxoimidazolidines of Formula I comprising one or more of the steps of converting an amine to an acylation agent, condensation of the acylation agent with a bi-functional compound of structure L-C(R4)(R5)—C(R2)(R3)—NHR1, wherein L is a leaving group, and ring closure of the resulting urea. In this manner, certain 2-oxoimidazolidines may be manufactured that are useful intermediates for the production of Pramiconazole and structurally related compounds.

    摘要翻译: 提供了制备式I的2-氧代咪唑烷的方法,其包括将胺转化为酰化剂的一个或多个步骤,酰化剂与结构LC(R4)(R5)的双功能化合物的缩合, -C(R 2)(R 3)-NHR 1,其中L是离去基团,并且所得脲的闭环。 以这种方式,可以制备某些2-氧代咪唑烷,其是生产普瑞康唑和结构相关化合物的有用中间体。