Anagrammeja & Tietoja | englanti sana IMINES

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Esimerkkejä IMINES käyttämisestä lauseessa

• The underlying concept has also been applied to π-systems involving heteroatoms, such as carbonyls and imines, which furnish the corresponding heterocycles; this variant is known as the hetero-Diels–Alder reaction.
• In organic chemistry, an oxime is an organic compound belonging to the imines, with the general formula , where R is an organic side-chain and R' may be hydrogen, forming an aldoxime, or another organic group, forming a ketoxime.
• They can be considered a sub-class of imines, being either secondary ketimines or secondary aldimines depending on their structure.
• It also efficiently reduces acyl chlorides, anhydrides, α-hydroxylactones, thioesters, and imines at room temperature or below.
• Reactions between aldimines and α-methylene carbonyls are also considered Mannich reactions because these imines form between amines and aldehydes.
• Compounds containing both a primary amino group and a hydroxyl group bonded to the same carbon atom are rarely stable, as they tend to dehydrate to form imines which polymerise to hexamethylenetetramine.
• Thus, (E) imines, in which the lone pair and larger imine carbon substituent are cis, tend to give exo products.
• Examples include reductive amination, carbonyl reduction, nitro compound reduction, the reduction of imines and Schiff bases and debenzylation reactions.
• Nitrogen derivates such as amides, nitriles, imines, and most other organonitrogen compounds are reduced to the corresponding amines.
• In organic chemistry, a semicarbazone is a derivative of imines formed by a condensation reaction between a ketone or aldehyde and semicarbazide.
• In type 3 the substrates are epoxides, notably 2,3-epoxy-alcohols and type 4 concerns the reactions of alpha hydroxyketones and alpha hydroxy imines.
• Cyclohexene derivatives, such as imines, epoxides, and halonium ions, react with nucleophiles in a stereoselective fashion, affording trans-diaxial addition products.
• Then the alkane metathesis reaction, the coupling of methane to ethane and hydrogen, the metathesis of cycloalkanes, the transformation of ethylene to propylene, the cutting of alkanes by methane, the hydro metathesis of olefins, the metathesis of imines, the metathetic oxidation of olefins.
• Jacobsen has developed catalysts for asymmetric epoxidation, hydrolytic kinetic resolution and desymmetrization of epoxides, asymmetric pericyclic reactions, and asymmetric additions to imines.
• Also named for Strecker are the Strecker degradation, which involves the conversion of amino acids into imines and then into ketones, and the Strecker sulfite alkylation.
• A variety of pharmaceutical drugs include sydnone imines in their chemical structure including feprosidnine, linsidomine, mesocarb, and molsidomine, among others.
• Molsidomine and linsidomine are sydnone imines, a class of mesoionic heterocyclic aromatic chemical compounds.
• Other functional groups that have been reduced with hydrosilanes include amides, and α,β-unsaturated esters enamines, imines, and azides.
• Hydrogenation of imines is complicated by both syn/anti isomerization and tautomerization to enamines, which may be hydrogenated with low enantioselectivity in the presence of a chiral catalyst.
• Imines synthesized in this fashion have been shown to undergo a one-pot Mannich reaction with 1,3-dicarbonyl compounds, such as malonate esters and 1,3-diketones.

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