metathesis in English

noun

1

the transposition of sounds or letters in a word.

X sometimes alternates with sk by metathesis : Manx for earlier Mansk; piskey as a variant of pixie; ax as a dialect form of ask.

2

a reaction in which two compounds exchange ions, typically with precipitation of an insoluble product.

Recently there has also been a growing interest in utilising what is known as the alkene metathesis reaction for altering chain-lengths of ‘oils’ to form new compounds.

noun

double decomposition

Use "metathesis" in a sentence

1. In one embodiment, a method is provided for carrying out a catalytic ring-opening cross-metathesis reaction, comprising contacting at least one olefinic substrate with at least one cyclic olefin as a cross metathesis partner, in the presence of a ruthenium alkylidene olefin metathesis catalyst under conditions effective to allow ring insertion cross metathesis whereby the cyclic olefin is simultaneously opened and inserted into the olefinic substrate.

2. Proprietary OCT converts normal Butylenes and ethylene to polymer grade propylene via metathesis

3. 1971 Yves Chauvin offered an explanation of the reaction mechanism of olefin metathesis reactions.

4. Novel ruthenium metal alkylidene complexes coordinated with triazolylidene ligands that exhibit high olefin metathesis activity

5. Polyalkylthiophene block copolymer and method for preparing same through a ring-opening metathesis polymerization reaction

6. 14 Studying the sol - thermal and chemical metathesis synthesis of nanomaterial powder is the main task.

7. From Italian Aria, metathesis from Latin āerem, accusative of āēr, from Ancient Greek ἀήρ (aḗr, “ air ”)

8. The Aromatizing ring-closing metathesis has been shown to take place inside an extended porous framework

9. Alkyne metathesis is an organic reaction that entails the redistribution of Alkyne chemical bonds.The reaction requires metal catalysts

10. Alkylidene complexes of ruthenium with n-heterocyclic carbene ligands and their use as highly active, selective catalysts for olefin metathesis

11. There are various sound changes such as diphthongization, palatalization, metathesis, Anaptyxis, apocope, syncope, vowel breaking, haplology, assimilation, dissimilation, and the like

12. The metathesis catalyst is a ruthenium or osmium carbene complex catalyst, such as one containing an alkylidene ligand with basicity higher than that of tricyclohexylphosphine (PCY3) and a neutral electron donor ligand with a basicity lower than that of PCy3, whereby the catalyst initiates the metathesis reaction of the composition upon mixing with the substrate.

13. Attempts to the three-coordinate Aluminyl by abstraction of pyridine with BF3 Et2O unexpectedly led to the B/Al metathesis with the preservation of the …

14. Simple Athematic Present; Simple Athematic Aorist; Metathesis; Aorists in -ᾰ and -κᾰ; Athematic Reduplicated Present; Present Forms in -νη and -νυ; Athematic Contract Verbs; Athematic Contract Aorists; Meaning of Athematic Presents and Aorists; The Perfect; The Perfect Participle; Thematic Perfects; Meaning of the Perfect; Thematic

15. The Synthesis of Cyclo-Archaeol 3 With building block 21 in hand, we commenced with the synthesis of cyclo-Archaeol 3.Previously,our group reported the synthesis of 3 using ring-closing metathesis.[17] The terminal alkenes were installed at alate stage via aWittig olefination

16. This reaction must be run in non-acidic conditions to prevent chlorine gas from bubbling out of solution: 2 Cl− → Cl 2 + 2 e− Cl 2 + H 2O ⇌ HClO + Cl− + H+ Small amounts of more unusual hypochlorites may also be formed by a salt metathesis reaction between calcium hypochlorite and various metal sulfates.