The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 1984
Filed:
Nov. 15, 1982
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
In a method for producing 1,3,5-triisopropylbenzene trihydroperoxides by bringing 1,3,5-triisopropylbenzene or its homologs into contact reaction with oxygen or an oxygen-containing gas in the co-existence of an aqueous alkali solution, a method for producing 1,3,5-triisopropylbenzene trihydroperoxides wherein said contact reaction is carried out under a condition that the reaction temperature be 60.degree. to 120.degree. C., the pH of the reaction solution phase be 8 to 11 and the amount of said aqueous alkali solution be 0.1 to 3 times by weight based on the organic layer as raw material, the reaction is finished at a point when the yield of 1,3,5-triisopropylbenzene trihydroperoxide (hereinafter referred to as THPO) is not less than 20% and besides, the total of the yield of carbinols (hereinafter referred to as THPO carbinols) having a structure in which part or all of the three hydroperoxy groups of THPO have been replaced by hydroxy groups and that of THPO above is not less than 60%, and if necessary, after separation-removing the aqueous layer from the resulting oxidation solution, the organic layer is, as such or as an organic layer containing THPO and THPO carbinols after removing reaction intermediates from it, brought into contact with hydrogen peroxide. The 1,3,5-triisopropylbenzene trihydroperoxide are useful as a starting material of phloroglucin.