Which is more stable cation or anion?

Which is more stable cation or anion?

Negatively charged ions are also common intermediates in reactions. Like cations, anions are frequently unstable species. The more polarizable the atom, the more stable the anion. Within a row of the periodic table, the more electronegative an atom, the more stable the anion.

Which cation is more stable?

More stable is the tricyclopropylmethyl cation. The bent bonds of the cyclopropane ring can overlap with the empty p orbital without steric hindrance. Nothing beats the stability of aromatic cations like cyclopropenium and cycloheptatrienylium (tropylium) cations.

How do you know which cation is more stable?

Resonance delocalization of the charge through a larger π cloud makes the cation more stable. A lone pair on an adjacent atom stabilizes a carbocation. Thus, CH3OCH+2 is more stable than CH3CH2CH+2 because of resonance. The cation is more stable because the charge is spread over two atoms.

Why stability of carbocations follows the order tertiary secondary primary?

Tertiary carbocations are stable by inductive effect and hyper conjugation, and therefore have the tendency to sustain the positive charge on the carbon atom and stay like this for long. That is why we call it stable: it can stay that way longer.

Are tertiary Carbocations more reactive?

A tertiary carbocation is not really the most reactive. A molecule that is able to form a tertiary carbocation during a chemical process is the most reactive in that process. For example, tertiary halides do the fastest SN1 reactions. A tertiary carbocation forms the most quickly because it is the most stable.

Which intermediate is formed in Wolff’s reaction?

ketene

Which is the Lossen rearrangement reaction?

The Lossen reaction14,15 is the rearrangement of hydroxamic acids, which are prepared from acids, acyl chlorides and esters. It is usually conducted under alkaline conditions.

Which is courteous rearrangement reaction?

The Curtius rearrangement is a versatile reaction in which a carboxylic acid can be converted to an isocyanate through acyl azide intermediate under mild conditions. The resulting stable isocyanate can then be readily transformed into a variety of amines and amine derivatives including urethanes and ureas.