4-(Chloromethyl)pyridine hydrochloride Chemical Properties

Melting point:

166-173 °C(lit.)

storage temp. 

Inert atmosphere,2-8°C

solubility 

soluble in DMSO, Methanol

form 

Fine Crystalline Powder

color 

Yellow to orange

Water Solubility 

750 g/L (20 ºC)

Sensitive 

Hygroscopic

BRN 

3689154

CAS DataBase Reference

1822-51-1(CAS DataBase Reference)

Safety Information

Hazard Codes 

C,Xi

Risk Statements 

34-4-22-36/37/38

Safety Statements 

26-36/37/39-45-36

RIDADR 

UN 3261 8/PG 3

WGK Germany 

3

F 

3-10

Hazard Note 

Corrosive

HazardClass 

8

PackingGroup 

III

HS Code 

29333999

MSDS

• Language:English Provider:4-Picolyl chloride hydrochloride
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

4-(Chloromethyl)pyridine hydrochloride Usage And Synthesis

Chemical Properties

YELLOW TO ORANGE FINE CRYSTALLINE POWDER

Uses

It finds its application as a reagent for protection of carboxyl termini of peptides as 4-picolyl esters, providing a polar 'handle' which aids in separation and purification of the peptide. The group can be introduced in the presence of a base, e.g. tetramethylguanidine, is stable to acid-catalyzed removal of Cbz protecting group and can be removed by base, Na in liquid ammonia or catalytic hydrogenolysis. It is also applied in conjunction with Amberlyst?15 resin in peptide synthesis. It is an important raw material and intermediate used in organic synthesis, pharmaceuticals and agrochemicals.

Purification Methods

Purify it by recrystallisation from EtOH or EtOH/dry Et2O. It melts between 171o and 175o, and the clear melt resolidifies on further heating at 190o and turns red to black at 280o but does not melt again. The picrate-hydrochloride (prepared in EtOH) has m 146-147o. The free base is an oil. [Mosher & Tessieri J Am Chem Soc 73 4925 1951, Beilstein 20 III/IV 2752.]

4-(Chloromethyl)pyridine hydrochloride(1822-51-1)Related Product Information

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