Advanced Synthesis &Catalysis, EarlyView.γ‐Amino acid derivatives with an α‐quaternary center are prevalent in medicinally important compounds. A dual N‐heterocyclic carbene/photocatalytic pathway is developed for the three‐component synthesis of α, α ‐disubstituted γ‐amino esters. This methodology allows for the rapid synthesis of diverse libraries of γ‐amino esters in good yields.
Adam X. Wayment, Karl A. Scheidt
wiley +1 more source
Seismic stratigraphy and evolution of mesozoic deposits in the central Arabian basin. [PDF]
Sci RepHarishidayat D +2 more
europepmc +1 more source
Gold‐Catalyzed Synthesis of Fluorenones via Intramolecular C–H Arylation
Advanced Synthesis &Catalysis, EarlyView.Starting from 2‐diazobenzophenones, a straightforward synthesis of valuable fluorenones via a gold‐catalyzed one‐pot oxidation, C–H activation, and cyclization is described. The addition of ascorbic acid, the correct selection of the counteranion of the 2‐diazobenzophenones, and the use of terpyridine as an auxiliary ligand are crucial for the reaction
Osvaldo Felipe López‐Saladino +5 more
wiley +1 more source
EQUILIBRIUM RELATIONS AMONG AROMATIC HYDROCARBONS PRODUCED BY CRACKING PETROLEUM [PDF]
, 1916 W. F. Rittman, T. J. Twomey
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Eco-friendly degreasing adsorbent derived from oily scum and walnut shells for oilfield sewage treatment and industrial oils adsorption. [PDF]
PLoS OneTang C, Guan J, Lin Y.
europepmc +1 more source
Advanced Synthesis &Catalysis, EarlyView.A photocatalytic strategy enables efficient cyclization of polyenes to cyclopentyl thioethers with consecutive all‐carbon quaternary centers. Using 2,4,6‐triphenylpyrylium tetrafluoroborate in 1,1,1,3,3,3‐hexafluoroisopropanol, the method proceeds via a thiyl radical mechanism, offering high yields and good diastereoselectivities.
Nicolás Rascón +2 more
wiley +1 more source
NITROGENOUS CONTAMINANTS IN PETROLEUM ETHER EXTRACTS OF PLASMA LIPIDS
, 1939 Jordi Folch, Donald D. Van Slyke
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Retraction: Synthesis and application of monodisperse hydrophobic magnetite nanoparticles as an oil spill collector using an ionic liquid. [PDF]
RSC AdvAtta AM, Ezzat AO, Hashem AI.
europepmc +1 more source
Harnessing Vinylogy with Radicals: Photoinduced γ‐Benzylation Reactions of 2‐Silyloxyfurans
Advanced Synthesis &Catalysis, EarlyView.Two radical‐mediated benzylations of 2‐silyloxyfurans, promoted by visible light and suitable photoredox catalysts have been disclosed. A broad scope of γ‐benzyl butenolides was obtained in one step, some of which were used as strategic precursors to bio‐valuable chiral butanolides.
Enrico Marcantonio +12 more
wiley +1 more source
Separation of petroleum hydrocarbons with silica gel
, 1935 Beveridge J. Mair, Joseph D. White
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