Types Of Attacking Reagents Flashcards
What are electrophiles?
Electron lovers.
- Positively charged with incomplete octet
- Neutral with incomplete octet or vacant d orbital
- Molecule with pi bond and inpresence of highly EN atom
Which atom loses the electron?
The less EN one.
What do halogens act as? (Attacking Reagent)
Electrophiles
Elements of period 2
lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.
How does acidic character work along periods?
Acidic character is directly proportional to the EN of elements
How does Basicity work along period?
It runs parallel to Nucleophilicity.
It is inversely proportional to the EN of central atom.
Acidic Character is directly proportional to which group?
EWG
Acidic character is inversely proportional to which group?
EDG
How is carbocation formed from alcohol?
Alcohols bad leaving group is concerted into a good leaving group by protonation or lewis acid reaction or reaction with TsCl
Some examples of Lewis Acid
AlCl3, SbCl5
Diazotisation of Primary amine
R-NH2 + [NaNO2 + HCl] or HNO2 —-> R-N2 + —-> R+ + N2