acetophenone in Vietnamese

danh từ
axêtofênon (C8H8O)

Sentence patterns related to "acetophenone"

1. 2-Methoxy-acetophenone

2. 2-Methyl-acetophenone

3. 4-Hydroxy acetophenone

4. Heterocyclic acetophenone potentiators of metabotropic glutamate receptors

5. Method for synthesizing acetophenone

6. A process for synthesis of 2,4-dichloro-5-fluoro acetophenone (DCFA) is disclosed.

7. Triplet state properties of chromone, 4-chromanone, acetophenone, and several alkyl derivatives of acetophenone were studied in a variety of solvent systems.

8. Reaction product of acetophenone, formaldehyde, cyclohexylamine, methanol and acetic acid

9. Adrenalone hydrochloride, 3′,4′-Dihydroxy-2-(methylamino)acetophenone hydrochloride

10. Synonyms: Adrenalone hydrochloride, 3′,4′-Dihydroxy-2-(methylamino)acetophenone hydrochloride

11. (d) use of carbon tetrachloride in the manufacture of isobutyl acetophenone (ibruprofen — analgesic);

12. - use of carbon tetrachloride in the manufacture of isobutyl acetophenone (ibruprofen-analgesic),

13. A set of equilibrium constants for aldol condensations of acetaldehyde, acetone, acetophenone, and acetic acid as nucleophiles and formaldehyde, acetaldehyde, benzaldehyde, acetone, and acetophenone as carbonyl acceptors has been evaluated.

14. use of carbon tetrachloride in the manufacture of isobutyl acetophenone (ibruprofen-analgesic);

15. Benzoin is a ketone that consists of acetophenone bearing hydroxy and phenyl substituents at the alpha-position

16. The sulfhydrylation step is preceded by the formation of theSchiff bases from acetophenone and ammonia.

17. The Knoevenagel reaction of acetophenone with ethyl cyanoacetate was shown to have a rate enhancement of 2.5 times.

18. Reaction intermediates are ω,ω-dimercaptoacetophenone (VII), originating from repeated sulfhydrylation of acetophenone, and phenylglyoxylic acid thionamide (I).

19. A procedure was worked out for the determination of 0.1–4.0% of residual acetophenone in commercial Mannich base.

20. ►C8 Reaction product of acetophenone, formaldehyde, cyclohexylamine, methanol and acetic acid (EC No 406-230-1) ◄

21. The sec-butylbenzene is then oxidized to produce an oxidation effluent comprising sec-butylbenzene hydroperoxide and acetophenone.

22. Equilibrium acidities in DMSO are reported for nine cycloalkanones, acetone, acetophenone, and 19 of their α-substituted derivatives.

23. Acetophenone (CAS RN 98-86-2), with a purity by weight of 60 % or more but not more than 90 %

24. The key steps involved an aldol type condensation of the dianion from 2,4,6-trimethoxybenzoylacetone and a suitable acetophenone.

25. For acetyl group relaxation in acetophenone, ΔHE = 29.6 ± 0.6 kJ mol−1 and ΔSE = 26 ± 3 JK−1 mol−1 (95% confidence intervals).

26. 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.

27. Co-inclusion of acetophenone with various substrates and oxygen quenching studies indicate that Silicalite has at least two distinct classes of inclusion sites.

28. Australene Aniline,4-bromo-2-nitro Aminutrin acetophenone,2-hydroxy-4-bromo Alloxanthine AURORA KA-3051 AC-7168 AURORA KA-6694 aminofluoronitrobenzene Aethylenglykol-mono-sec.-butylaether

29. Ring-substituted α-bromoacetophenones react with alcohols in a chain reaction leading to the corresponding acetophenone, HBr, and the carbonyl compound from oxidation of the alcohol.

30. This behavior serves as the basis of detecting formaldehyde in the presence of acetaldehyde, acetaldehyde in the presence of acetone, andω-chloroacetophenone in the presence of acetophenone.

31. Acetophenone Azine (CAS 729-43-1) was recently discovered as a potent allergen in shin pads and footwear containing the foam elastomer ethyl vinyl acetate

32. Thus, alkyl and aryl thiols, alcohols, amine, hydride, allyl trimethylsilane, acetophenone, and diethylmalonate as well as some aryl compounds react with the quinone methide to give various 2-substituted phenols.

33. Other uses are as a starting material for detergent production, in the synthesis of α-methylstyrene, acetophenone and di-isopropylbenzene and as a catalyst for acrylic polyester-type resins.

34. Saturated and aromatic hydrocarbons, ethers, esters, aldehydes, alcohols, acetophenone, nitrobenzene and aniline energe rapidly from a chromatographic column of Silochrom C80 at temperatures 100–200°C with symmetrical peaks.

35. In order to increase the resource efficiency of the acetophenone hydrogenation unit in the SMPO production process, BAT is to minimise excess hydrogen or to recycle hydrogen by using BAT 8a.

36. Process for the preparation of alkyl benzoylacrylates of formula (I) where R = alkyl, in which the reaction is carried out in an acid medium in the same reactor, without isolating the intermediate products, as follows: condensation of acetophenone with glyoxylic acid, elimination of a water/acetophenone mixture, elimination of the excess acetophenone, esterification with an alcohol in the presence of a strong acid, addition of a solvent, elimination of a mixture constituted by water, solvent and alcohol, dehydration by azeotropic distillation of the water, neutralization of the strong acid with a basic aqueous solution, decanting and concentration of the organic phase and recovery of the sought final product of formula (I).

37. Acetary Acetate Acetated Acetic Acetification Acetifier Acetify Acetimeter Acetimetry Acetin Acetize acetol Acetometer Acetonaemia Acetone Acetonic Acetonuria acetophenetidin Acetophenone Acetose Acetosity: Acetous Acetous acid Acetous fermentation acetphenetidin Acetyl acetylate acetylcholine acetylcholinesterase Acetylene Ach Achaean

38. This allows a ladder of equilibrium constants to be constructed from acetophenone, for which the equilibrium constant for acetal formation has been measured in methanol, to methyl formate, for which it has not.

39. Technical details about Adrenalone, learn more about the structure, uses, toxicity, action, side effects and more Adrenalone Also known as: 62-13-5, Stryphnonasal, Adrenone hydrochloride, Kephrine hydrochloride, 3',4'-dihydroxy-2-(methylamino)acetophenone hydrochloride, Epinephrine …

40. When the carbonyl nucleophiles are compared to other nucleophiles which can add to carbonyl compounds, it is found that they can be incorporated in the linear free energy relationship of Sander and Jencks, with γ values of 0.45 for acetaldehyde, 0.16 for acetone, 0.05 for acetophenone, and 3.56 for acetic acid.

41. The systems used are not volume-dependent. for the identification and test of purity by means of test liquids, where, e. g., glycerol is used for aldehydes and ketones, glycol for ethereal oils, ethylene cyanide for benzene and its homologues and halogen derivatives. for quantitative determination of binary mixtures, when still other test liquids are employed: paraffine oil, butanol, acetophenone.

42. All processes directly or indirectly linked to the production of phenol and acetone are included, in particular air compression, hydroperoxidation, cumene recovery from spent air, concentration & cleavage, production fractionation & purification, tar cracking, acetophenone recovery & purification, AMS recovery for export, AMS hydrogenation for ISB recycle, initial waste water purification (1st waste water stripper), cooling water generation (e.g., cooling towers), cooling water utilisation (circulation pumps),flare & incinerators (even if physically located OSB) as well as any support fuel consumption.

43. It is pointed out that pKaKeto for acetone and acetophenone can be determined from the kinetics of the reaction with hypochlorite in base; the values so derived are in good agreement with those used in this work. pKEnol values are reported for: 1,3-dichloroacetone, 2.0; 1,1-dichloroacetone, 4.9; ethyl pyruvate, 4.2; bromoacetone, 3.5; chloroacetone, 3.7; l-phenyl-2-propanone, 4.5 (CH2); 7.2 (CH3); p-nitroacetophenone, 7.1; ethyl levulinate, 5.6; methoxyacetone, 6.9 (CH2); 7.6 (CH3); benzalacetone, 7.6; p-methoxyacetophenone, 7.8; 3-methyl-2-butanone, 8.0 (CH); 2,4-dimethyl-3-pentanone, 9.4.