• Thumbnail for Reactivity–selectivity principle
    chemistry the reactivityselectivity principle or RSP states that a more reactive chemical compound or reactive intermediate is less selective in chemical...
    4 KB (561 words) - 00:17, 27 June 2024
  • in pharmacology Functional selectivity, in pharmacology Natural selection, in biology Reactivityselectivity principle, in general chemistry Chemoselectivity...
    1 KB (174 words) - 00:10, 19 December 2021
  • the same relative reactivity regardless of the nature of the electrophile, which is in violation of the reactivityselectivity principle. For this reason...
    18 KB (2,213 words) - 07:10, 14 June 2025
  • pedagogical demonstration of the reactivityselectivity principle and the Hammond postulate. A bromine radical is not very reactive and the transition state for...
    8 KB (853 words) - 03:10, 30 April 2025
  • distribution of the two intermediates. The Curtin–Hammett principle has been invoked to explain selectivity in a variety of stereo- and regioselective reactions...
    29 KB (3,756 words) - 04:10, 15 November 2024
  • Thumbnail for Dioxirane
    Maria F. Rubino (1995). "Dioxirane oxidations: Taming the reactivity-selectivity principle" (PDF). Pure Appl. Chem. 67 (5): 811–822. doi:10.1351/pac199567050811...
    6 KB (579 words) - 09:33, 22 June 2025
  • Thumbnail for Heterogeneous catalysis
    the reactivity volcano. In addition to studying catalytic reactivity, scaling relations can be used to study and screen materials for selectivity toward...
    30 KB (3,250 words) - 12:45, 29 June 2025
  • Thumbnail for Sodium borohydride
    neighboring ester. The reactivity of NaBH4 can be enhanced or augmented by a variety of compounds. Many additives for modifying the reactivity of sodium borohydride...
    29 KB (2,769 words) - 21:01, 21 July 2025
  • catalytic activity and selectivity. The primary concern of this methodology is to establish structure-reactivity/selectivity relationships of catalysts...
    29 KB (3,438 words) - 09:08, 27 March 2025
  • Thumbnail for Enolate
    Enolate (category Reactive intermediates)
    ISBN 978-0-471-72091-1 Seebach, Dieter (1988). "Structure and Reactivity of Lithium Enolates. From Pinacolone to SelectiveC-Alkylations of Peptides. Difficulties and Opportunities...
    21 KB (2,466 words) - 09:11, 19 May 2025
  • chelating ruthenium catalyst to afford Z macrocycles in high selectivity. The selectivity is attributed to the increased steric clash between the catalyst...
    37 KB (4,704 words) - 17:29, 21 April 2025
  • Thumbnail for Heterogeneous gold catalysis
    to crotyl alcohol, 80% selectivity was attained at 5-10% conversion and 523 K (250 °C) on Au/ZrO2 and Au/ZnO. The selectivity increased along with Au...
    34 KB (4,352 words) - 19:57, 26 July 2025
  • Thumbnail for Copolymer
    the polymer product; namely, one must consider the reactivity ratio of each component. Reactivity ratios describe whether the monomer reacts preferentially...
    37 KB (4,281 words) - 03:13, 17 July 2025
  • describes reactivity of organic compounds perfectly, whereas the HSAB principle fails and should be abandoned in the rationalization of ambident reactivity of...
    19 KB (2,118 words) - 10:59, 24 May 2025
  • Thumbnail for Ligand
    Ligands in a complex dictate the reactivity of the central atom, including ligand substitution rates, the reactivity of the ligands themselves, and redox...
    35 KB (3,356 words) - 09:12, 24 June 2025
  • weighing the relative significance of each) when rationalizing the selectivity or reactivity of a chemical process. In modern form, the Klopman–Salem equation...
    6 KB (806 words) - 09:48, 4 November 2024
  • ee's and yield of the product, very high selectivity factors are necessary. For example, with a selectivity factor of 10, ee″ above approximately 80%...
    57 KB (6,971 words) - 09:15, 8 June 2025
  • Thumbnail for Thin-layer chromatography
    Solvents are divided into solvent selectivity groups. Using solvents with different elution strengths or different selectivity groups can often give very different...
    23 KB (2,541 words) - 00:41, 28 June 2025
  • Thumbnail for Etching (microfabrication)
    pyrocatechol), displays a <100>/<111> selectivity of 17X, does not etch silicon dioxide as KOH does, and also displays high selectivity between lightly doped and...
    17 KB (1,558 words) - 07:29, 17 July 2025
  • Thumbnail for Epoxy
    resistance, durability, versatility, and adhesion. In principle, any molecule containing a reactive hydrogen may react with the epoxide groups of the epoxy...
    68 KB (8,439 words) - 09:10, 28 July 2025
  • Thumbnail for Alkali–silica reaction
    NaOH FHWA (2010-06-22). "Alkali-Silica Reactivity (ASR) – Concrete – Pavements – FHWA". Alkali-Silica Reactivity (ASR) Development and Deployment Program...
    79 KB (9,315 words) - 15:21, 6 July 2025
  • Thumbnail for Gaia hypothesis
    (/ˈɡaɪ.ə/), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings...
    77 KB (9,266 words) - 08:06, 30 July 2025
  • additions to allyl- and vinylsilanes take advantage of this, and site selectivity generally reflects this property—electrophiles become bound to the carbon...
    12 KB (1,477 words) - 15:22, 7 February 2024
  • the reactivity (in analogy to reactance). The magnitude of impedivity is the square root of sum of squares of magnitudes of resistivity and reactivity. Conversely...
    78 KB (8,181 words) - 06:37, 17 July 2025
  • Thumbnail for Electronic filter
    receiver application of filtering as Q was a measure of the frequency selectivity of a tuning circuit. From the 1920s filters began to be designed from...
    14 KB (1,675 words) - 10:46, 24 March 2025
  • has also been demonstrated that sustained release of DRS could afford selectivity (choice of a particular reactant from a variety, say B from A, B, C and...
    46 KB (5,004 words) - 10:44, 30 June 2025
  • important with regard to the selectivity observed in an asymmetric synthesis. Many aspects of the structure-reactivity relationship in organic chemistry...
    50 KB (5,561 words) - 21:02, 24 July 2025
  • inert, it becomes highly reactive when scaled down to nanometer scale. One of the properties that govern cluster reactivity is electron affinity. Chlorine...
    35 KB (4,269 words) - 18:00, 18 June 2025
  • The reactivity of cobalt- and iron-DIP complexes are similar. Cobalt DIP complexes with azide ligands have been shown to lose N2 to give reactive nitrido...
    11 KB (1,250 words) - 18:19, 14 June 2025
  • Thumbnail for Ball mill
    dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering. It works on the principle of impact and attrition: size reduction is done by...
    12 KB (1,578 words) - 07:41, 24 May 2025