-
公开(公告)号：US5391812A
公开(公告)日：1995-02-21
申请号：US951238
申请日：1992-09-25
CPC分类号： C11D3/3907
摘要： Polyglycolate compounds are provided having the general structure: ##STR1## wherein n is an integer from 2 to about 10; R is C.sub.1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C.sub.1-20 alkyl, aryl, C.sub.1-20 alkylaryl, substituted aryl, and NR.sub.3.sup..alpha.+, wherein R.sup..alpha. is C.sub.1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxygen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure ##STR2## will be formed in amounts approaching quantitative yield.
摘要翻译： 提供了具有以下通用结构的聚乙醇酸酯化合物：其中n为2至约10的整数; R为C 1-20直链或支链烷基，烷氧基化烷基，环烷基，芳基，烷基芳基，取代芳基; R'和R“独立地为H，C 1-20烷基，芳基，C 1-20烷基芳基，取代的芳基和NR 3α+，其中Rα为C 1-30烷基; L是在过氧漂白溶液中通过全氢氧化物阴离子置换的离去基团。 当该化合物与水溶液中的过氧源组合时，形成多个去污过酸。 这样的过酸基本上是从与离去基团L相邻的羰基开始形成的。因此，具有接近定量收率的量的第一种去除污垢的过酸的结构将形成。
-
公开(公告)号：US4814110A
公开(公告)日：1989-03-21
申请号：US883626
申请日：1986-07-09
申请人： Ronald A. Fong , Richard R. Rowland
发明人： Ronald A. Fong , Richard R. Rowland
IPC分类号： C07C67/08 , C07C409/24 , C07C409/26 , C11D3/39
CPC分类号： C07C67/08 , C07C67/28 , C07C67/29 , C11D3/3907 , Y02P20/55
摘要： The present invention provides a method of esterifying dihydroxybenzene starting materials to synthesize unsymmetrical diesters in high yield. Many of the resultant unsymmetrical diesters are useful in dry bleaching compositions. The method can be practiced by selectively monoacylating a dihydroxybenzene starting material with an acid anhydride to form an intermediate monoester having the structure ##STR1## which is then acylated to form a diester reaction product having the structure ##STR2## wherein R.sub.1 is greater than R.sub.3 (and both R.sub.1 and R.sub.3 are alkyl groups) and X is a substituent group which does not participate in the esterification (or which can have a protecting group thereon).
摘要翻译： 本发明提供了一种酯化二羟基苯原料以高产率合成非对称二酯的方法。 许多所得的非对称二酯在干燥漂白组合物中是有用的。 该方法可以通过用酸酐选择性单酰化二羟基苯原料来形成具有结构“IMAGE”的中间体单酯，然后将其进行酰化，形成具有结构“IMAGE”的二酯反应产物，其中R1大于R3（ 并且R 1和R 3都是烷基），X是不参与酯化反应的取代基（或其中可以具有保护基）。
-
公开(公告)号：US5545748A
公开(公告)日：1996-08-13
申请号：US325050
申请日：1994-10-18
IPC分类号： C01B15/00 , C07C409/24 , C11D3/39 , C11D7/54 , D06L3/02 , D06L3/06 , C07C409/02 , C01B15/10
CPC分类号： C11D3/3907
摘要： Polyglycolate compounds are provided having the general structure: ##STR1## wherein n is an integer from 2 to about 10; R is C.sub.1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C.sub.1-20 alkyl, aryl, C.sub.1-20 alkylaryl, substituted aryl, and NR.sub.3.sup..alpha.+, wherein R.sup..alpha. is C.sub.1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxgen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure ##STR2## will be formed in amounts approaching quantitative yield.
摘要翻译： 提供了具有以下通用结构的聚乙醇酸酯化合物：其中n为2至约10的整数; R为C 1-20直链或支链烷基，烷氧基化烷基，环烷基，芳基，烷基芳基，取代芳基; R'和R“独立地为H，C 1-20烷基，芳基，C 1-20烷基芳基，取代的芳基和NR 3α+，其中Rα为C 1-30烷基; L是在过氧漂白溶液中通过全氢氧化物阴离子置换的离去基团。 当该化合物与水溶液中的过氧化物源组合时，形成多个去污过酸。 这样的过酸基本上是从与离去基团L相邻的羰基开始形成的。因此，具有接近定量收率的量的第一个去除污垢的过酸的结构将被形成。
-
公开(公告)号：US5091560A
公开(公告)日：1992-02-25
申请号：US635409
申请日：1990-12-21
申请人： Richard R. Rowland
发明人： Richard R. Rowland
IPC分类号： C07C69/675 , C07C69/732
CPC分类号： C07C69/675 , C07C69/732
摘要： A method for synthesizing an acyloxycarboxylic acid by providing a reaction chamber, establishing sources of an .alpha.-hydroxycarboxylic acid and an acid chloride, and repeatedly contacting substantially equal molar amounts of the .alpha.-hydroxycarboxylic acid and the acid chloride within the reaction chamber. The acyloxycarboxylic acid so synthesized is useful as a starting material for conversion to various esters which, when placed in aqueous solution with a source of hydrogen peroxide, result in a peracid and are useful for bleaching applications.
摘要翻译： 通过提供反应室来合成酰氧基羧酸的方法，建立α-羟基羧酸和酰氯的来源，并且在反应室内反复接触基本相等摩尔量的α-羟基羧酸和酰基氯。 如此合成的酰氧基羧酸可用作转化成各种酯的起始原料，当用过氧化氢源放置在水溶液中时，会导致过酸，并且可用于漂白应用。
-
公开(公告)号：US5182045A
公开(公告)日：1993-01-26
申请号：US329982
申请日：1989-03-29
CPC分类号： C11D3/3907
摘要： Polyglycolate compounds are provided having the general structure: ##STR1## wherein n is an integer from 2 to about 10; R is C.sub.1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C.sub.1-20 alkyl, aryl, C.sub.1-20 alkylaryl, substituted aryl, and NR.sub.3.sup..alpha.+, wherein R.sup..alpha. is C.sub.1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxygen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure ##STR2## will be formed in amounts approaching quantitative yield.
-
-
-
-
搜索结果
5 条记录 (耗时 0.015 秒)
