公开(公告)号：EP0267048A3

公开(公告)日：1990-01-03

申请号：EP87309844.6

申请日：1987-11-06

申请人： The Clorox Company

发明人： Zielske, Alfred G. ,  Fong, Ronald A.

IPC分类号： C07C409/24 ,  C07C407/00 ,  C07C69/708 ,  C07C309/00 ,  C07C249/00 ,  C07C251/00 ,  C07D207/46

CPC分类号： C11D3/3907 ,  C07C309/00 ,  C07C409/24 ,  C07D207/46 ,  C07D209/48 ,  C11D3/3935

摘要： A perhydrolysis system for in situ generation of peroxyacid characterised in that it comprises:
a peroxyacid percursor including at least one α-substituted carbonyl moiety having the structure:
wherein R is hydrogen or an alkyl with not more than 5 carbons and L is a group whose conjugate acid has a pKa in aqueous solution of from about 5 to about 13; and
a source of peroxygen which will react with the peroxyacid precursor in aqueous solution to form a peroxyacid having the structure:
is disclosed. Peroxyacids and peroxyacid precursors are also disclosed.

公开(公告)号：EP0252724A2

公开(公告)日：1988-01-13

申请号：EP87306009.9

申请日：1987-07-08

申请人： The Clorox Company

发明人： Fong, Ronald A. ,  Rowland, Richard R.

IPC分类号： C07C69/28 ,  C07C67/08 ,  C07C69/90 ,  C07C69/63

CPC分类号： C07C67/08 ,  C07C67/28 ,  C07C67/29 ,  C11D3/3907 ,  Y02P20/55 ,  C07C69/017 ,  C07C69/28 ,  C07C69/63 ,  C07C69/16 ,  C07C69/86

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
which is then acylated to form a diester reaction product hav- ing the structure
wherein R 1 is greater than R 3 (and both R, and R 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不对称二酯的方法。 许多所得的非对称二酯在干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“CHEM”的中间体单酯，然后将其酰化形成具有结构CHEM的二酯反应产物，其中R 1大于R 3（ 并且R 1和R 3均为烷基），X为不参与酯化反应的取代基（或其中可具有保护基）。