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When protonation occurs with carboxylic acid why does the H plus cation go to the carbonyl oxygen?
Chmhlp1
The positive charge given to the carbonyl Oxygen can be delocalized onto the alcohol oxygen through resonance. This spreads the charge out and makes the species more stable.
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∙ 13y ago
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How is cation related to the atom?
Cations are much smaller than their corresponding parent.
What are the conditions for the halogenation of carbonyl compounds?
Carbonyl compounds can be halogenated through either base or acid catalysis, although a difference in products can be expected; acid catalysis is more likely to produce alpha-monohalogenated carbonyl compounds (although polyhalogenation is also possible with acid), and base is more likely to produce a polyhalogenated alpha carbonyl compound. Halogenation occurs through an enolate/enol intermediate (base or acid respectively). In the case of basic halogenation an enolate is formed at the alpha position of the carbonyl carbon. The enolate (nucleohile) then attacks the halogen (Br2, Cl2, I2-typically not F2) since the halogen molecule acts as a polarized electrophile. The monohalogenated product is now more reactive than the unhalogenated reactant since the electron withdrawing halogen makes any alpha protons remaining even more acidic and susceptible to abstraction via base to create another enolate, and the process can be repeated.
Is aspirin an alkene alcohol a ketone or a carboxylic acid?
Do not be confused with alcohols nor ketones when seeing the -OH and the =O bonded. They each are really parts of either:- the carboxylic acid group (-COOH)- the ester link (from neighbour carbon along the ring)Likewise, double-bonds you see constitute the benzene (aromatic) ring:- a functional group in itself- they are not the normal alkene double bonds- would actually best be represented by a circle inside the ring,- not double lines for each of 3 double bonds, as resonance occurs in benzene rings.Therefore, aspirin (or acetylsalicylic acid) contains:- aromatic ring- carboxylic acid group- ester groupand can be regarded as an acid (i.e. acetylsalicylic acid)or the acetate ester of salicylic acid :-)so aspirin is (if choosing from your options):- not an alkene, nor a ketone, nor an alcohol.- we are left with a carboxylic acidBUT we usually only regard aspirin as an acetate ester, or a derivative of salicylic acid,so you wouldn't generally hear one calling aspirin a carboxylic acid :-)I hope I cleared things up a bit :-)Cheers.
Combination reaction of NA plus I2?
When sodium metal is combined with iodine gas, an oxidation-reduction reaction occurs. Sodium loses and electron to form the sodium cation, and iodide gains an electron to form iodide. The resulting compound is NaI.
How formation of esters occurs?
Esters are formed by the reaction of alcohol and carboxylic acid in the presence of a sulphuric acid as a catalyst. The reaction is known as esterification.
What kind of intermolecular bonding occurs between carboxylic acids?
Hydrogen Bonds
What carboxylic acid would decarboxylate by heating?
A classic example of a carboxylic acid decarboxylation occurs in the malonic ester synthesis. The malonic ester synthesis is a chemical reaction where diethyl malonate or another ester of malonic acid is alkylated at the carbon alpha (directly adjacent) to both carbonyl groups, and then converted to a substituted acetic acid. Malonic acid is another example of an acid that will decarboxylate when heated (not sure at what temperature this happens, though)The structure of malonic acid is HOOC-CH2-COOH.
Why do we call a nucleophilic addition as 1 2 nucleophilic addition or 1 4 nucleophilic addition?
1,2-addition occurs when the carbonyl oxygen (1) is attached by the electrophile and the carbonyl carbon (2) attaches to the nucleophile for the 1,4 the 4 is the beta carbon
How is cation related to the atom?
Cations are much smaller than their corresponding parent.
Which changes occurs when a barium atom loses two electrons?
It becomes a positive ion and its radius decrease
10 What occurs in an atom to produce an ion?
To produce a negative ion (anion): an electron is gained. To produce a positive ion (cation): an electron is loss.
What are the conditions for the halogenation of carbonyl compounds?
Carbonyl compounds can be halogenated through either base or acid catalysis, although a difference in products can be expected; acid catalysis is more likely to produce alpha-monohalogenated carbonyl compounds (although polyhalogenation is also possible with acid), and base is more likely to produce a polyhalogenated alpha carbonyl compound. Halogenation occurs through an enolate/enol intermediate (base or acid respectively). In the case of basic halogenation an enolate is formed at the alpha position of the carbonyl carbon. The enolate (nucleohile) then attacks the halogen (Br2, Cl2, I2-typically not F2) since the halogen molecule acts as a polarized electrophile. The monohalogenated product is now more reactive than the unhalogenated reactant since the electron withdrawing halogen makes any alpha protons remaining even more acidic and susceptible to abstraction via base to create another enolate, and the process can be repeated.
What is an allylate?
An allylation is any reaction which introduces an allyl group.
Neutralization reaction and salt in the same sentence?
When a neutralization reaction occurs salt and water are formed.
Is aspirin an alkene alcohol a ketone or a carboxylic acid?
Do not be confused with alcohols nor ketones when seeing the -OH and the =O bonded. They each are really parts of either:- the carboxylic acid group (-COOH)- the ester link (from neighbour carbon along the ring)Likewise, double-bonds you see constitute the benzene (aromatic) ring:- a functional group in itself- they are not the normal alkene double bonds- would actually best be represented by a circle inside the ring,- not double lines for each of 3 double bonds, as resonance occurs in benzene rings.Therefore, aspirin (or acetylsalicylic acid) contains:- aromatic ring- carboxylic acid group- ester groupand can be regarded as an acid (i.e. acetylsalicylic acid)or the acetate ester of salicylic acid :-)so aspirin is (if choosing from your options):- not an alkene, nor a ketone, nor an alcohol.- we are left with a carboxylic acidBUT we usually only regard aspirin as an acetate ester, or a derivative of salicylic acid,so you wouldn't generally hear one calling aspirin a carboxylic acid :-)I hope I cleared things up a bit :-)Cheers.
Combination reaction of NA plus I2?
When sodium metal is combined with iodine gas, an oxidation-reduction reaction occurs. Sodium loses and electron to form the sodium cation, and iodide gains an electron to form iodide. The resulting compound is NaI.
How formation of esters occurs?
Esters are formed by the reaction of alcohol and carboxylic acid in the presence of a sulphuric acid as a catalyst. The reaction is known as esterification.
