ChemInform Abstract: Formation, Structure, and Reactivity of Palladium Superoxo Complexes.

Talsi, E. P.; Babenko, V. P.; Шубин, А. А.; Chinakov, V. D.; Nekipelov, V. M.; Zamaraev, K. I.

doi:10.1002/chin.198811301

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“…[ 47 , 48 ] VO(acac) 2 is also known to catalyze the epoxidation of alkenes with sacrificial inexpensive peroxides such as H 2 O 2 or tert ‐butyl hydroperoxide. [ 49 , 50 , 51 ] Accordingly, we adopted an epoxidation protocol by addition of 30 mol% t BuOOH to the cardanyl hydroperoxide mixture which enhanced the yield of the desired epoxy alcohols to 88 % and prevented the formation of allyl alcohol byproducts. The catalyst could be removed by adsorption on silica.…”

Section: Resultsmentioning

confidence: 99%

Light‐Driven Waste‐To‐Value Upcycling: Bio‐Based Polyols and Polyurethanes from the Photo‐Oxygenation of Cardanols

Stuhr

Bayer²,

Stark

et al. 2021

ChemSusChem

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The upcycling of waste biomass into valuable materials by resource‐efficient chemical transformations is a prime objective for sustainable chemistry. This approach is demonstrated in a straightforward light‐driven synthesis of polyols and polyurethane foams from the multi‐ton waste products of cashew nut processing. The photo‐oxygenation of cardanol from nutshell oil results in the formation of synthetically versatile hydroperoxides. The choice of the workup method (i. e., reduction, hydrogenation, epoxidation) enables access to a diverse range of alcohols with tunable alkene and OH functions. Condensation with isocyanates to give rigid polyurethane foams provides a resource‐efficient waste‐to‐value chain that benefits from the availability of cardanol and installation of OH groups from aerial O2.

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Section: Resultsmentioning

confidence: 99%

Light‐Driven Waste‐To‐Value Upcycling: Bio‐Based Polyols and Polyurethanes from the Photo‐Oxygenation of Cardanols

Stuhr

Bayer²,

Stark

et al. 2021

ChemSusChem

View full text Add to dashboard Cite

show abstract

ChemInform Abstract: Formation, Structure, and Reactivity of Palladium Superoxo Complexes.

Abstract: Formation of two types, type I and type II of Pd superoxo complexes in the reactions of Pd(II) acetate, propionate, trifluoroacetate, and bis(acetylacetonate) and of Pd(PPh3)4 with H2O2 or KO2 in various solvents are detected by EPR.

Cited by 1 publication

References 1 publication

Light‐Driven Waste‐To‐Value Upcycling: Bio‐Based Polyols and Polyurethanes from the Photo‐Oxygenation of Cardanols

Light‐Driven Waste‐To‐Value Upcycling: Bio‐Based Polyols and Polyurethanes from the Photo‐Oxygenation of Cardanols

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