cyclization|cyclizations in English
noun cyclization (Amer.)
(Chemistry) formation of one or more hydrocarbon ring to a closed ring, forming of a ring in a chemical compound (also cyclisation)
Use "cyclization|cyclizations" in a sentence
1. Key words: abietic acid, pregnane steroids, acetylene-cation cyclization
2. A palladium-catalyzed chemoselective aminomethylative cyclization and Aromatizing allylic amination of enyne-tethered allylic alcohols with aminals is described
3. The Amination cyclization reaction mechanism was examined employing nuclear magnetic resonance (NMR) spectroscopy to determine the reaction kinetic profile
4. Polyfunctional Alkylating Agents MOA: The general mechanism involves intramolecular cyclization to form what ion? ethyleneimonium ion
5. Upon formation of the mixed phosphine NHC/phosphine gold species, elevated temperatures induced the cyclization to give stable Aurated
6. This is believed to be formed by reaction and cyclization of the initial Schiff base Adduct with the N-terminal …
7. The cleavage of an unactivated aryl nitro group triggered by alkyl radicals enables a dearomative cyclization, affording diversified Alkylated spiro[5.5]trienones in good yields
8. This observation indicates that the cyclization of L-alloisoleucine to coronamic acid can occur before formation of the amide bond between coronafacic acid and coronamic acid.
9. Polyalkene cyclization is a powerful synthetic method for the preparation of Alicyclic compounds containing certain combinations of five-, six- and seven-membered rings
10. 24 By adjusting the reaction temperature or using different cyclization methods, condensation is carried out, and indanone dimmer and indanone trimer can be obtained respectively.
11. The aldol adduct 5 generated in this manner then undergoes very rapid cyclization to 4, which subsequently loses water to produce the quinoline derivative 8.
12. The effect of cyclization of the propionic acid residues in mesobilirubin XIIIα propan-1,3-diyl ester on the angle between the dipyrrinone halves has been studied.
13. The structure including the stereochemistry of a novel monoterpenoid isoquinoline alkaloid, Alangine, was confirmed by total synthesis via N-acyliminium cyclization to construct the isoquinoline
14. Cyclization reactions of γ-(p-chloro-phenylthio)-acetoacetate and γ-(p-bromo-phenylthio)-acetoacetate withPPA followed by hydrolysis gave 5-chloro- and 5-bromobenzo[b]thiopheneacetic acid.
15. Abietic acid (1a) has been converted into the pregnane analogue steroid 10 via a sequence of transformations involving as key step the acetylene-cation cyclization of 9.
16. Oxidative cyclization of carnosic acid to carnosol followed by dihydroxylation at the isopropyl moiety afforded the novel compound 11,12,16,17-tetrahydroxy-7-10-(epoxymethano)-abiet-8,11,13-triene-20-one.
17. An alternate route for the synthesis of cyclic amidofurans was developed using a Pummerer induced cyclization of the thiophenyl substituted acetal derived from the aldol reaction of methoxyphenylsulfanyl acetaldehyde with a-valerolactam.
18. As the concentration of Coagent increased from 5 to 10 phr, cyclization predominated and TAC forms a dispersed phase that is incompatible with NR, resulting in a considerable reduction in cross-link density.
19. The structure including the stereochemistry of a novel monoterpenoid isoquinoline alkaloid, Alangine, was confirmed by total synthesis via N-acyliminium cyclization to construct the isoquinoline skeleton and reductive cleavage of vinyl epoxide with Pd(0) catalyst.
20. Interaction of 2-and 4-fluorophenylamines with acrylic and itaconic acids leads to the synthesis of the corresponding N-substituted β-Alanines, the cyclization of which leads to derivatives of dihydropyrimidinone, 4-carboxy-2-pyrrolidinone, and tetrahydropyridone
21. Biosynthesis Biosynthesis requires the coordinated activity of up to 10 different enzymes.3,4 In eukaryotes, this starts in the mitochondrial matrix by condensation of succinyl-CoA and glycine to form δ-aminolevulinic acid, which is transported to the cytosol, where cyclization to …
22. Examination of the mechanism of the cyclization of L-alloisoleucine to coronamic acid revealed that the formation of the cyclopropane ring takes place with the removal of only two hydrogen atoms from the amino acid, one at C-2 and the other at C-6.
23. Catalytic Arylative Endo Cyclization of Gold Acetylides: Access to 3,4‐Diphenyl Isoquinoline, 2,3‐Diphenyl Indole, and Mesoionic Normal NHC–Gold Complex Jiwei Wang Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry & Molecular Engineering, East China Normal University, 3663 North Zhongshan Road
24. The present invention provides a method for producing a compound represented by formula (1), or a salt thereof, the method comprising: step [I] of reacting an organoborane reagent with a compound represented by formula (2), or a salt thereof; and step [II] of inducing intramolecular cyclization in the reaction product of step [I] by using a zero-valency palladium catalyst in the presence of an alkali metal hydroxide.