This solid peroxide is particularly sensitive to temperature rises and contamination. Above a given "Control Temperature" they decompose violently. It is generally stored or transported as a mixture, with an inert solid.
[EN] PROCESS FOR THE PRODUCTION OF A FERTILIZER<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN ENGRAIS
申请人:AKZO NOBEL CHEMICALS INT BV
公开号:WO2019145304A1
公开(公告)日:2019-08-01
Process for the production of a compound comprising potassium phosphite comprising the steps of (a) reacting carboxylic acid of the formula R-(C(=O)OH)n with phosphorous trichloride (PCl3) towards a mixture comprising phosphorous acid (H3PO3) and acid chloride of the formula R-(C(=O)Cl)n; wherein R is a linear or branched alkyl or alkanediyl group with 1-20 carbon atoms and n is 1 or 2, (b) subjecting said mixture to a separation step, thereby obtaining (i) a fraction comprising crude phosphorous acid (H3PO3) and (ii) a fraction comprising acid chloride, (c) combining water, a potassium compound selected from KOH, KHCO3 and K2CO3, and the fraction comprising crude phosphorous acid, thereby forming an aqueous solution comprising potassium phosphite, and (d) removing organic compounds from said aqueous solution.
Radical Decarboxylation/Annulation of Acrylamides with Aliphatic Acyl Peroxides
作者:Changduo Pan、Yu Fu、Qingting Ni、Jin-Tao Yu
DOI:10.1021/acs.joc.7b00663
日期:2017.5.5
A radical decarboxylation/annulation of acrylamides with aliphatic acyl peroxides was developed, giving a series of linear alkylated oxindoles in moderate to good yields. The reaction used aliphatic acyl peroxides as the linear alkyl radical source and tolerated a broad scope of substrates under metal-free conditions, offering a simple and efficient approach toward alkylated oxindoles.
Exceptionally high decarboxylation rate of a primary aliphatic acyloxy radical determined by radical product yield analysis and quantitative <sup>1</sup>
H-CIDNP spectroscopy
作者:Alicia Fraind、Ryan Turncliff、Teri Fox、Justin Sodano、Lev R. Ryzhkov
DOI:10.1002/poc.1836
日期:2011.9
Symmetrical (RCO2CO2R; R = XCH2CH2) and asymmetrical (RCO2CO2R′; R = C9H19CH2CH2, R′ = CH3 or m‐ClC6H4) primary diacylperoxides were thermally decomposed under different conditions to analyze the decarboxylation rates of the thermally generated acyloxy radicals. Quantitative models of the geminate product yields, and qualitative and quantitative 1H‐CIDNP spectroscopy were used to obtain the decarboxylation
[EN] PROCESS FOR THE PRODUCTION OF DIACYL PEROXIDES<br/>[FR] PROCÉDÉ DE PRODUCTION DE PEROXYDES DE DIACYLE
申请人:NOURYON CHEMICALS INT BV
公开号:WO2020249691A1
公开(公告)日:2020-12-17
Process for the production of a diacyl peroxide involving the reaction of an anhydride with an aldehyde and oxygen, removal of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydride within the process.