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List of reagents of all chapters and their function

List of reagents of all chapters and their function


5 Answers

Aman Bansal
592 Points
9 years ago
Dear Ram,

List of Organic Reagents

Aqueous NaOH


Nucleophilic substitution, converts haloalkanes to alcohols.

Mg in dry ether


Used to make grignard reagents with haloalkanes.


Room temperature

Chlorinating agent, reacts with OH group in alcohols and carboxylic acids

HNO3 and H2SO4


Adds NO2 group onto benzene ring.

CI3 and AICI3

Warm gently

Adds CI group onto benzene ring.


Warm gently

Adds CH3CH2 group onto benzene ring.

HCI and NaNO2

Below 5C

Forms diazonium salts with phenylamine.


Name of Reagent


Example of its Use

K2Cr2O7 with conc. H2SO4

Warm gently

Oxidising agent, used commonly for oxidising secondary alcohols to ketones.

Excess conc. H2SO4

Heat to 170 C

Dehydrating agent, used to dehydrate alcohols to alkenes.


Ultra Violet light

Free radical reaction, used to convert alkanes to haloalkanes.

Br2 in CCI4

Room temperature, in the dark

Electrophilic addition, converts alkenes to dihaloalkanes.


Nickel catalyst, 300 C and 30 atmospheres pressure

Hydrogenating agent, used to convert benzene to cylcohexane.


Nickel catalyst, 150 C

Reducing agent, used to convert alkenes to alkanes

Tin in hydrochloric acid


Reducing agent for converting nitrobenzene to phenylamine.

Acidified KMNO4

Room temperature

Oxidising agent, converts alkenes to diols.

NaOH in ethanol


Elimination reaction, converts haloalkanes to alkenes.


Intramolecular Cannizaro





i)  Aluminium isobutoxide

ii) Acetone (Oppenaur Oxidation)


Reverse of MPV oxidises alcohol to carbonyl




RO- (Claisen Schmidt Reaction)





i) Acetic anhydride

ii) Sodium acetate (Perkin’s reaction)



i)  Aluminium isobutoxide

ii) Propan-2 ol (MPV Reduction)


Reduces ketone to alcohol





Cannizaro Reaction


This is reaction of compounds which don’t have alpha hydrogen





Cross Cannizaro



Anhydrous H contains no water





i) CHCH3 - Alc KOH

ii) H3O+ (Riemann Tiemann)





(i) CO2

(ii) H3O+ (Kolbe’s reaction)

High Pressure




AlCl3 (Fries rearrangement)





(i) K2S2O8

(ii) H3O+ (Elb’s persulphate oxidation)






(i) Fused NaOH

(ii) H3O+ (Dow’s process)

High Pressure


KMnO4, H+ (or) K2Cr2O7, H+ (or) H2CrO4


Oxidises alcohol to acid




PCC (Pyrindinium) chloro chromate

Solvent CS2

Restricted oxidation of alcohol. Forms aldehyde.




MnO2 special oxidising agent for alcohol








For 1 degree carbon


For 3 degree carbon





Conc HI contains very less water



(i) Alc KOH

(ii) NaNH2







Adds both X on compound having double or triple bond




Cold Dil KMnO4




Hot KMnO4






Super Leaving Group




LiAH4 –ether


Reduces ester to alcohol




NaBH4- ROH (protic solvent)


Reduces to alcohol but cannot act on ester





Heat, High Pressure

Causes cleavage and reduction of ester


OSO4 + H2O-NaHSO3 or Cold Dilute KMnO4 (Hydroxylation)


Gives syn vicinal dihalide from alkene





Per-formic acid (Anti Hydroxylation)


Gives anti vicinal diol





HBr in presence of H2O2 (Only for HBr)


Anti Marknokov’s





Hot Alkaline KMnO4


Replaces “=” with either C = O or COOH





CH2-I2, ZnCu


Adds methyl in cyclic manner


Alcoholic KOH


Removes HX from compound and adds double bond




Zn dust


Removes all HX




H2 PdBaSO4 or S-Quinoline (Lindhar’s catalyst) or BH3-THF


Reduces alkyne to alkene





Ph3P = CH2


Replaces O of Carbonyl with methyl









ONDM (Oxymercuration demercuration)

(i) Hg (OAC)2 + THF-H2O

(ii) NaBH4-OH-





Substitutes allyic carbon with aldehyde




(i) NH2-NH2

(ii) RO-


Reduces carbonyl group to ketone or aldehyde






Removes diazo group




LiAH4 or NaBH4 or Ph3 SnH



R2 CuL (Lithium dialkylcuprate)


Removes halogen from RX and adds R






Adds Mg between R &  X

Red P + HI


Reduces all to corresponding alkanes





Br2 + CS2


Causes Br to go on ring




Br2 + H2O

Compound should be more activated than benzene




Sn + HCI


Reduces group



Removes Diazo group




NH4H or NaS or Na2S


Special regents which reduce only 1 NO2 group




CrO2CI2 + H3O+


Converts toluene to benzaidehyde

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Aman Bansal
13 Points
4 years ago
Same as upper answer it is perfect answer I seen ever thank u Thanks for all list I have much fee of reagents and cannot find anywhere list of all reagents thanks askiitians
Vedant Dehariya
28 Points
2 years ago
Also same as upper its perfect answer for better knowing 
I wish that it is beneficial for you
Good luck for your exam
Reagents knowledge is very important for going on organic chemistry 
Without this you cannot be able to do any conversion of organic compound
Thank you
Rishi Sharma
askIITians Faculty 646 Points
one year ago
Hii Ram,
The solution of the above problem is attached.
I hope the solution will solve all your doubts.
Thank You,
All the Best for the Exams.

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Daaru singh
14 Points
7 months ago
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