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An imine is a functional group or chemical compound containing a carbon-nitrogen double bond. An imine can be synthesised by the nucleophilic addition of an amine to a ketone or aldehyde giving a hemiaminal -C(OH)(NHR)- followed by an elimination of water to yield the imine. However, the equilibrium in this reaction usually lies in favor of the free carbonyl compound and amine, so that azeotrope distillation or use of a dehydrating agent such as molecular sieves is required to push the reaction in favor of imine formation. For more details, see the links on the left side of this column.
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Is imine an NH compound?
Yes. Imine is derived from ammonia and containing an NHgroup attached by a double bond to a carbon atom in another group.
Preparation of aldehydes from nitriles?
Aldehydes can be prepared from nitriles by reducing the nitrile group to an imine using reducing agents like lithium aluminum hydride or hydrochloric acid, followed by hydrolysis of the imine to yield the aldehyde. The hydrolysis step can be achieved by using mild acidic conditions or hydrogenation.
What functional groups are in oxymetazoline?
The main functional groups in oxymetazoline are an ether group (-O-) and an amine group (-NH-). The amine group can be part of an amide or imine functional group.
What is the chemical reaction for furfural and a primary aromatic amine C5H4O2 plus Nh2?
What is the chemical reaction for furfural and a primary aromatic amine C5H4O2 plus Nh2?y
Suggest possible reaction mechanisms for the reaction of acetone and semicarbazide?
Reaction: CH3C(=O)CH3 + NH2NHC(=O)NH2 --> (CH3)2C=NNHC(=O)NH2 1) N from NH2 acts as the nucleophile, attacks the carbonyl group and changes into a tetrahedral intermediate. Positive charge on NH2, negative charge on oxygen. (CH3)2(O-C)--(NH2)+NHC(=O)NH2 2) oxygen takes the hydrogen from nitrogen through rearrangement because it is more electronegative. (CH3)2(HOC)--(NH)NHC(=O)NH2 3) Acid protonates the alcohol once more to make it a better leaving group. (CH3)2(H2O+C)--(NH)NHC(=O)NH2 4) Nitrogen from NH2 donates its electrons to generate a double bond, bumping off the water molecule and leaving a positive charge on nitrogen. (CH3)2C=NH+NHC(=O)NH2 5) Water pulls off the hydrogen that was still attached to the nitrogen, thus generating the condensation product between acetone and semicarbazide. (CH3)2C=NNHC(=O)NH2
Is imine an NH compound?
Yes. Imine is derived from ammonia and containing an NHgroup attached by a double bond to a carbon atom in another group.
What is an ammonium imine?
An ammonium imine is a compound that contains both an ammonium group (NH4+) and an imine functional group (C=N). It is formed by the condensation of ammonia and an aldehyde or ketone, resulting in the substitution of a hydrogen of the ammonium group with an imine group. Ammonium imines are commonly used as intermediates in organic synthesis reactions.
What are 5 words that have the prefix imin?
Iminazole, iminent, iminourea, imine, and imino.
What is an aldimine?
An aldimine is an imine derived from an aldehyde, with a general formula RCH=NR.
What is the pKa value of an imine functional group and how does it affect its reactivity in organic chemistry reactions?
The pKa value of an imine functional group is typically around 9-10. A lower pKa value indicates that the imine is more acidic and therefore more reactive in organic chemistry reactions. This increased reactivity allows imines to participate in various reactions such as nucleophilic addition and condensation reactions.
Diazepam is an acid or base. pKa3.4?
it is a base because of its weak basic imine group
What are the key functional groups in a Quinine molecule?
C20H24N2O2
What is an acyliminium?
An acyliminium is an acyl iminium ion - an ion of iminium, a form of quaternary ammonium formed by an imine.
Schiff base of aniline and benzaldehyde?
The Schiff base formed from aniline and benzaldehyde is N-phenylideneaniline. This compound is a imine derivative and is commonly used in organic synthesis reactions. It is formed by the condensation of aniline and benzaldehyde in the presence of a suitable catalyst.
What is an aziridine?
An aziridination is a reaction which results in the formation of an aziridine.
What does formaldehyde do to glycine?
Formaldehyde when reacted with glycine in a completely neutral solution forms CH2NCH2COO- imine. The formation of this imine permanently blocks the completely ampholytic nature of glycine in an acid solution, when otherwise it would have formed HOOC-CH2-NH3+. Here both the solutions of formaldehyde as well as glycine have to be completely neutral or slightly basic , to ensure that all NH2 gets converted to imine.
What are the functional groups in Valium?
my penis is a functional group in valium! also, its got 1 amine, 1 imine, and 2 aromatic rings.
