Molecular views on mechanisms of Brønsted acid-catalyzed reactions in zeolites
The Brønsted acidity of proton-exchanged zeolites has historically led to the most impactful
applications of these materials in heterogeneous catalysis, mainly in the fields of …
applications of these materials in heterogeneous catalysis, mainly in the fields of …
Biosynthesis and metabolism of cyclopropane rings in natural compounds
Cyclopropane subunits occur in many natural products of secondary metabolism. 1 The
majority of cyclopropane-containing natural compounds have been isolated from plants …
majority of cyclopropane-containing natural compounds have been isolated from plants …
Enzymatic chemistry of cyclopropane, epoxide, and aziridine biosynthesis
Cyclopropane, epoxide, and aziridine groups are three-membered ring structural elements
found in a wide variety of natural products, some of which are depicted in Figure 1. 1 The …
found in a wide variety of natural products, some of which are depicted in Figure 1. 1 The …
An invariance in the isoheptanes of petroleum
FD Mango - Science, 1987 - science.org
Four isoheptanes in petroleum display a remarkable invariance in a ratio of sums of
concentrations. The isoheptanes are not at thermodynamic equilibrium, nor are they fixed to …
concentrations. The isoheptanes are not at thermodynamic equilibrium, nor are they fixed to …
Bent bonds in organic compounds
KB Wiberg - Accounts of chemical research, 1996 - ACS Publications
The bonds in organic compounds are usually taken as a linear path between the two
bonded nuclei. However, it is not obvious that this should always be the case, and …
bonded nuclei. However, it is not obvious that this should always be the case, and …
Effect of Silver Cations on Propene Aromatization on H-ZSM-5 Zeolite Investigated by 13C MAS NMR and FTIR Spectroscopy
ZN Lashchinskaya, AA Gabrienko, IP Prosvirin… - ACS …, 2023 - ACS Publications
Silver-modified zeolites exhibit high selectivity for alkene transformation to aromatic
hydrocarbons. To inquire into the effect of silver cations in zeolite on the pathways of …
hydrocarbons. To inquire into the effect of silver cations in zeolite on the pathways of …
Gas phase analogues of solvolysis reactions
TH Morton - Tetrahedron, 1982 - Elsevier
INTRODUCTION Transformation of a covalent bond into an ionic (or electrostatic) bond is an
elementary chemical reaction. The best known case is represented by reaction (1) and the …
elementary chemical reaction. The best known case is represented by reaction (1) and the …
Isobutene Transformation to Aromatics on Zn-Modified Zeolite: Particular Effects of Zn2+ and ZnO Species on the Reaction Occurrence Revealed with Solid-State …
AA Gabrienko, ZN Lashchinskaya… - The Journal of …, 2021 - ACS Publications
The effect of Zn2+ cations and small clusters of ZnO on isobutene transformation to aromatic
hydrocarbons on Zn-modified zeolites (Zn2+/H-ZSM-5 and ZnO/H-BEA) has been …
hydrocarbons on Zn-modified zeolites (Zn2+/H-ZSM-5 and ZnO/H-BEA) has been …
Chrysanthemyl diphosphate synthase: isolation of the gene and characterization of the recombinant non-head-to-tail monoterpene synthase from Chrysanthemum …
SB Rivera, BD Swedlund, GJ King… - Proceedings of the …, 2001 - National Acad Sciences
Chrysanthemyl diphosphate synthase (CPPase) catalyzes the condensation of two
molecules of dimethylallyl diphosphate to produce chrysanthemyl diphosphate (CPP), a …
molecules of dimethylallyl diphosphate to produce chrysanthemyl diphosphate (CPP), a …
Low-temperature oligomerization of small olefins on zeolite H-ZSM-5. An investigation with high-resolution solid-state 13C-NMR
JP Van den Berg, JP Wolthuizen, ADH Clague… - Journal of …, 1983 - Elsevier
Oligomerization reactions of ethene, propene, isobutene, and 2-methyl-butene-1 on zeolite
H-ZSM-5 at 300 and 373K were investigated using high-resolution solid-state 13 C-NMR …
H-ZSM-5 at 300 and 373K were investigated using high-resolution solid-state 13 C-NMR …