A Simple and Efficient Preparation of Penicillin V β-Sulfoxide

1986 ◽  
Vol 39 (7) ◽  
pp. 1165 ◽  
Author(s):  
M Davis ◽  
WY Wu
Keyword(s):  
Hydrogen Peroxide ◽  
High Yield ◽  
Aqueous Hydrogen Peroxide ◽  
Two Phase ◽  
Penicillin V ◽  
Phase Mixture

Penicillin V (1) can be oxidized to the β- sulfoxide (2) in high yield in a two-phase mixture of dichloromethane and aqueous hydrogen peroxide. The addition of acids or metallic catalysts is not necessary.

scholarly journals A bottom up approach towards artificial oxygenases by combining iron coordination complexes and peptides

2017 ◽  
Vol 8 (5) ◽  
pp. 3660-3667 ◽  
Author(s):  
Olaf Cussó ◽  
Michael W. Giuliano ◽  
Xavi Ribas ◽  
Scott J. Miller ◽  
Miquel Costas
Keyword(s):  
Hydrogen Peroxide ◽  
Coordination Complexes ◽  
Asymmetric Epoxidation ◽  
Coordination Complex ◽  
High Yield ◽  
Aqueous Hydrogen Peroxide ◽  
Bottom Up ◽  
Iron Coordination

The combination of peptides and a chiral iron coordination complex catalyzes high yield highly asymmetric epoxidation with aqueous hydrogen peroxide.

Asymmetric epoxidation of olefins catalyzed by Ti(salan) complexes using aqueous hydrogen peroxide as the oxidant

2008 ◽  
Vol 80 (5) ◽  
pp. 1071-1077 ◽  
Author(s):  
Kazuhiro Matsumoto ◽  
Yuji Sawada ◽  
Tsutomu Katsuki
Keyword(s):  
Hydrogen Peroxide ◽  
Phosphate Buffer ◽  
Asymmetric Epoxidation ◽  
High Yield ◽  
Aqueous Hydrogen Peroxide ◽  
Isolation And Purification ◽  
Epoxidation Of Olefins

Ti(salan) complexes were found to be efficient catalysts for asymmetric epoxidation with aqueous hydrogen peroxide as the oxidant. In the presence of pH 7.4 phosphate buffer, the reaction of various conjugate olefins proceeded smoothly to afford the corresponding epoxides in high yield with high enantioselectivity, even on a multigram scale. Ti(salan) complexes could be prepared from Ti(OiPr)4 and the corresponding salan ligand and directly used without isolation and purification.

Two-Phase Oxidations with Aqueous Hydrogen Peroxide Catalyzed by Amphiphilic Pyridinium and Diazinium Salts

2015 ◽  
Vol 357 (16-17) ◽  
pp. 3573-3586 ◽  
Author(s):  
Tomáš Hartman ◽  
Jiří Šturala ◽  
Radek Cibulka
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Hydrogen Peroxide ◽  
Two Phase

scholarly journals Metal-Organic Frameworks in Oxidation Catalysis with Hydrogen Peroxide

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 283
Author(s):  
Oxana Kholdeeva ◽  
Nataliya Maksimchuk
Keyword(s):  
Hydrogen Peroxide ◽  
Liquid Phase ◽  
Selective Oxidation ◽  
Metal Organic Frameworks ◽  
Short Review ◽  
Catalytic Performance ◽  
Oxidation Catalysis ◽  
Catalyst Stability ◽  
Aqueous Hydrogen Peroxide ◽  
Metal Organic

In recent years, metal–organic frameworks (MOFs) have received increasing attention as selective oxidation catalysts and supports for their construction. In this short review paper, we survey recent findings concerning use of MOFs in heterogeneous liquid-phase selective oxidation catalysis with the green oxidant–aqueous hydrogen peroxide. MOFs having outstanding thermal and chemical stability, such as Cr(III)-based MIL-101, Ti(IV)-based MIL-125, Zr(IV)-based UiO-66(67), Zn(II)-based ZIF-8, and some others, will be in the main focus of this work. The effects of the metal nature and MOF structure on catalytic activity and oxidation selectivity are analyzed and the mechanisms of hydrogen peroxide activation are discussed. In some cases, we also make an attempt to analyze relationships between liquid-phase adsorption properties of MOFs and peculiarities of their catalytic performance. Attempts of using MOFs as supports for construction of single-site catalysts through their modification with heterometals will be also addressed in relation to the use of such catalysts for activation of H2O2. Special attention is given to the critical issues of catalyst stability and reusability. The scope and limitations of MOF catalysts in H2O2-based selective oxidation are discussed.

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