enol in Vietnamese

enol

Sentence patterns related to "enol"

1. They undergo a variety of secondary thermal reactions, probably acid catalyzed, to give enol ethers, enol acetates, acetophenones, and ketonylacetophenones.

2. Kanamienamide, an enamide with an enol ether, was isolated from the marine cyanobacterium Moorea Bouillonii

3. In contrast, in the acid-catalyzed Aldol reaction, only the poorly nucleophilic enol is available.

4. The determination is based on the absorption peak of thevOH stretching vibration resulting from the enol content.

5. The addition of water to Alkynes is a related reaction, except the initial enol intermediate converts to the ketone or aldehyde.

6. For the Aldol condensation shown for acetone, what would be the structure of the electrophilic species that the enol attacks?

7. An example is the Mukaiyama aldol addition reaction between benzaldehyde and the silyl enol ether of cyclohexanone with an 81% chemical yield.

Một ví dụ là phản ứng thêm mukaiyama aldol giữa benzandehit và ether silic enol của cyclohexanone với sản lượng hoá học 81%.

8. Aldol condensations, even with ketones, can occur under acid conditions where the active nucleophile is the enol, not the enolate ion

9. In this video I want to introduce you to a mechanism called the Aldol reaction Aldol reaction it's easily one of the most important mechanisms and reactions in all of organic chemistry because it's a powerful way to actually create carbon-carbon bonds and it'll actually be a little bit of a review of what we saw with enol and the enolate ions and the the keto enol tautomer I have trouble saying that anyway …

10. The reactions of the trimethylsilyl enol ethers of both 4-thiochromanone and 4-thiochromanone 1,1-dioxide with various carbonyl compounds complexed with titanium tetrachloride give moderate yields of the previously unknown 3-alkylidene condensation products under mild conditions.

11. Mechanism; Condensation Types; An aldol Condensation is a Condensation reaction in organic chemistry in which an enol or an enolate ion reacts with a carbonyl compound to form a β-hydroxyaldehyde or β-hydroxyketone, followed by dehydration to give a conjugated enone.

12. Anils have received particular attention due to their ability to switch between two forms, the enol-imine and keto-amine tautomers via intramolecular proton transfer that can take place both in the crystalline state as well as in rigid glassy solutions

13. The main components in the EO from the arnica Achenes were 2,5-dimethoxy-p-cymene (39.54 and 44.65%), cumene (13.24 and 10.71%), thymol methyl ether (8.66 and 8.63%), 2,6-diisopropylanisole (8.55 and 8.41%), decanal (7.31 and 6.28%), and 1,2,2,3-tetramethylcyclopent-3-enol (4.33 and 2.94%) in the 3- and 4-year-old plants, respectively.

14. Rates of ketonization of the enol of acetophenone, generated by flash photolytic photohydration of phenylacetylene, were measured in aqueous sulfuric and perchloric acid solutions over the concentration range 1–50 wt.% acid; rates of enolization of acetophenone, monitored by bromine scavenging, were also measured in aqueous perchloric acid solutions over the same concentration range.

15. What is described is a process for preparing 2-hydroxyacetals of the general formula in which R1 is hydrogen, a branched or unbranched C1-C12-alkyl radical, an electron-deficient, halogen-, NO2-, CN-, CF3-, acyl group- or branched or unbranched alkyl group-substituted or unsubstituted C5-C6-aryl or heteroaryl, and R2 is a branched or unbranched C1-C5-alkyl radical, or both R2 radicals are bonded directly to one another or to one another via a C1-C4 unit, by reacting an enol compound of the general formula (II) in which R3 is the same and R1 is as defined for formula (Ia), with bromine to give the corresponding dibromo adduct and then reacting this dibromo adduct with an alkoxide of the general formula (III) M-O-R2 (III) in which R2 is as defined for formula (Ia) and O is oxygen and M is lithium, sodium or potassium.