931-17-9Relevant articles and documents
Ammonium Fluoroperoxomonophosphate Dihydrate, 2*2H2O. First Chemical Synthesis of a Fluorinated Peroxophosphate
Bhattacharjee, Manish,Chaudhuri, Mihir K.
, p. 2005 - 2006 (1988)
The salt 2*2H2O has been synthesised from the reaction of with 48 percent HF and 30 percent H2O2 at pH 10 - 11, maintained by the addition of aqueous ammonia, at an ice-bath temperature.The compound has been characterised by chemical analysis, i.r., and laser-Raman spectroscopic studies.Some properties of the compound are also reported.
Two routes to 1,2-cyclohexanediol catalyzed by zeolites under solvent-free condition
Lei, Wenkang,Wu, Zaikun,Ma, Jie,Yu, Ping,Luo, Yunbai
, p. 6893 - 6905 (2016)
Two routes to 1,2-cyclohexanediol were studied. Specifically: (a) the hydrolysis of cyclohexene oxide and (b) the direct dihydroxylation of cyclohexene with aqueous hydrogen peroxide. Both reactions were carried out with zeolites as catalysts under solvent-free conditions, aiming to establish green routes for the synthesis of 1,2-cyclohexanediol. In the first route, H-Beta and H-ZSM-5 zeolites were used as catalysts, respectively. According to the results, H-ZSM-5 was a suitable catalyst for the hydrolysis of cyclohexene oxide. A 88.6?% yield of 1,2-cyclohexanediol could be obtained at a 96.2?% conversion of cyclohexene oxide under mild conditions, and the catalyst could be reused for three times. Compared with H-ZSM-5, H-Beta gave a much lower selectivity (63?%), although it was more active. In the second route, Ti-Beta zeolites with three different Ti loadings prepared via a simple two-step strategy were characterized and used. The results indicated that it was the framework Ti species which was responsible for the catalytic activity. The resultant Ti-Beta-3?% could give a 90.2?% cyclohexene conversion at a 66.2?% selectivity of 1,2-cyclohexanediol.
PROCESS FOR THE PREPARATION OF HYDROPEROXY ALCOHOLS USING A HETEROGENOUS CATALYST
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Page/Page column 23, (2021/07/02)
The present invention relates to a process for preparing hydroperoxy alcohols using hydrogen peroxide as an oxidant in a solvent selected from water-soluble carboxylic acids, in the presence of a metallic mixed oxide heterogeneous catalyst. It also pertains to the use of this catalyst in the synthesis of hydroperoxy alcohols.
Tandem Lewis acid catalysis for the conversion of alkenes to 1,2-diols in the confined space of bifunctional TiSn-Beta zeolite
Lei, Qifeng,Wang, Chang,Dai, Weili,Wu, Guangjun,Guan, Naijia,Hunger, Michael,Li, Landong
, p. 1176 - 1184 (2021/02/16)
The generation of multifunctional isolated active sites in zeolite supports is an attractive method for integrating multistep sequential reactions into a single-pass tandem catalytic reaction. In this study, bifunctional TiSn-Beta zeolite was prepared by a simple and scalable post-synthesis approach, and it was utilized as an efficient heterogeneous catalyst for the tandem conversion of alkenes to 1,2-diols. The isolated Ti and Sn Lewis acid sites within the TiSn-Beta zeolite can efficiently integrate alkene epoxidation and epoxide hydration in tandem in a zeolite microreactor to achieve one-step conversion of alkenes to 1,2-diols with a high selectivity of >90%. Zeolite confinement effects result in high tandem rates of alkene epoxidation and epoxide hydration as well as high selectivity toward the desired product. Further, the novel method demonstrated herein can be employed to other tandem catalytic reactions for sustainable chemical production.
