Reagents

Question 1

LiAlH4

Answer 1

Very strong reducing agent
Turns aldehydes and ketones to alcohols
Can also reduce carbonyl (C=O)

Question 2

Lindlar and H2

Answer 2

Weak reducing agent that converts alkynes to cis alkenes

Question 3

Na/NH3

Answer 3

Weak reducing agent that converts alkynes to trans alkenes

Question 4

H2/Raney Ni

Answer 4

Strong reducing agent that can reduce aromatic rings

Question 5

Pd/ C

Answer 5

Reducing agent
Turns alkynes and alkenes to alkanes
Can also reduce aromatic with added pressure and high temp
Pt/C does same thing

Question 6

Br2/FeBr3

Answer 6

EAS Bromination

Also works with chlorine

Question 7

CCl4

Answer 7

Non polar solvent

Often used with Br to add Br’s across the double bond of alkenes

Question 8

CrO3

Answer 8

Oxidizing agent

Converts alkyl groups to carboxyl groups on aromatic compounds

Question 9

Cr (VI)

Answer 9

Converts secondary alcohols into ketones or carboxylic acids under mild/intense conditions
Turns primary alcohols to aldehydes

Question 10

HBr/HCl

Answer 10

Adds to alkenes and or alkynes in markovnikov fashion

Question 11

H2CrO4

Answer 11

Strong alcohol oxidant
With primary alcohols and aldehydes it turns them into COOH
Secondary alcohol is turned into ketone

Question 12

Hg(OAc)2

Answer 12

Oxymercuration demercuration
Reduction
Often paired with NaBH4 and or H2SO4

Question 13

HNO3

Answer 13

EAS Nitration

Question 14

BH3

Answer 14

Paired with H2O2 (ROOR) and NaOH

Gives Anti markovnikov product

Question 15

K2Cr2O7

Answer 15

Oxidizes alkenes alcohols aldehydes and alkanes

Question 16

KOH

Answer 16

Strong base

NaOH, NaNh2 are another strong bases

Question 17

KOtBu

Answer 17

Bulky base used in elimination

Question 18

MnO2

Answer 18

Oxidation of allylic and or benzyllic alcohols to ketones and aldehydes

Question 19

N3

Answer 19

Great nucleophile

CN and KCN is also another example

Question 20

Na2Cr2O7

Answer 20

Strong alcohol oxidant alcohol to ketones or aldehydes

Question 21

NBS

Answer 21

Allylic and or benzyllic Bromination

Question 22

PCC

Answer 22

Oxidizing agent for alcohols
Primary to aldehydes
Secondary to ketones
Does not oxidize aldehydes to COOH

Question 23

Pyridine

Answer 23

Weak base

Question 24

Ag2O

Answer 24

Tollens reaction

Turns aldehydes to COOH

Question 25

BF3

Answer 25

Common Lewis acid used to form thioacetals from ketones

Question 26

Nh2nh2
KOH and heat
Glycol

Answer 26

W-K

Question 27

CuBr

Answer 27

Brominates aromatic ring

Question 28

CuCN

Answer 28

Adds Cn to aromatic ring

Question 29

CuCl

Answer 29

Chlorinates aromatic ring

Question 30

DCC

Answer 30

Reduces COOH and amines

Question 31

DIBAL

Answer 31

Reduces esters and nitriles

Question 32

LiAl(OtBu)3

Answer 32

Reducing agent for acid chlorides to give aldehydes

Question 33

NaNO2/ HCl

Answer 33

Converts primary amines to diazonium

Question 34

P2O5

Answer 34

Used to convert COOH to anhydrides and convert nitriles into amides

Question 35

PCl3 or PCl5

Answer 35

Converts alcohols to acid chlorides and COOH to acid chlorides

Question 36

Sn

Answer 36

Converts No2 (nitro groups) into amines

Question 37

HSO3 and fuming h2so4

Answer 37

Sulfonation EAS

Adds so3h to aromatic ring

Question 38

SoCl2 or SoBr2

Answer 38

Converts alcohols/COOH to alkynes/acyl chlorides

Question 39

Zn/Hg and HCl

Answer 39

Clemmensen reduction

Question 40

Diazomethane

Answer 40

Forms methyl esters from COOH

Question 41

LDA

Answer 41

Strong bulky base

Often used to create an irreversible enolate to do direct alkylation

Question 42

NaBH4

Answer 42

Reduces aldehydes to primary alcohol and ketones to secondary alcohol

Question 43

NaCN

Answer 43

Nucleophile used to generate nitriles

Question 44

PBr3

Answer 44

HVZ Reagent