With 1,4-diketones the distribution of the reduction products is dependent on the stereochemical situation of the two carbonyl functions.10 In acyclic derivatives, with no stereochemical interaction between the two carbonyl functions, the ketone groups are independently reduced to give methylene products...
The Clemmensen reduction uses amalgamated zinc (Zn/Hg) and hydrochloric acid to reduce an aldehyde or ketone to an alkane. Two proposed mechanisms exist: the “Carbanionic mechanism” involves zinc directly attacking the carbonyl group and the formation of carbanion intermediates, while the “Carbenoi...
Reactions of aldehydes and ketones: oxidation reduction nucleophilic addition 1) Aldehydes are easily oxidized, ketones are not. 2) Aldehydes are more reactive in nucleophilic additions than ketones. alkane alcohol aldehyde ketone carboxylic acid oxidation reduction reduction addition product nucleophilic ad...
The oxygenate products leaving the first catalyst bed were reduced by H-2 to the corresponding alkanes in the second reactor. Catalytic alcohol coupling and ketone hydrodeoxygenation were separately studied using ethanol and 4-pentanone as a model reactant over the catalyst of the first and the ...
The Wolff-Kishner reduction reaction uses hydrazine, a base, and heat to convert an aldehyde or ketone to alkane. ,百灵威
16. The method of claim 15, wherein the wet development is performed using an alkaline developer, an ammonium-based ionic liquid, a glycol ether, an organic acid, a ketone, or an alcohol. 17. The method of claim 15, wherein the wet development is performed using tetramethylammonium hydroxid...
1. A method of manufacturing a semiconductor device, the method comprising: developing a photoresist over a substrate; and cleaning the photoresist after the developing, the cleaning the photoresist comprising applying an alkaline environment to a surface of the photoresist. 2. The method of claim...
Oximes, ketones or mixtures thereof are obtained by reacting a nitroalkane, having at least one hydrogen attached to the carbon atom carrying the nitro group, or a nitrocycloalkane with carbonyl sulphide in the presence of a base at elevated temperature and pressure. The quantity of base used ...
Enantiocomplementary preparation of ( S )- and ( R )-1-pyridylalkanols via ketone reduction and alkane hydroxylation using whole cells of Pseudomonas putida UV4[J] . Mark D. Garrett,Robin Scott,Gary N. Sheldrake. Tetrahedron;: Asymmetry . 2002 (20)...
strategy for the synthesis of tetrasubstituted nitroalkenes was successfully developed, using a two-step procedure; the HWE olefination of the ketone to form the corresponding α,β-unsaturated esters is followed by a nitration reaction to introduce the nitro group in the α positi...