4-Amino-3-chlorobenzonitrile

4-Amino-3-chlorobenzonitrile Property

Melting point:

102-105 °C(lit.)

Boiling point:

277.8±25.0 °C(Predicted)

Density 

1.33±0.1 g/cm3(Predicted)

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

solubility 

soluble in Methanol

form 

powder to crystal

pka

-0.22±0.10(Predicted)

color 

Light yellow to Brown to Dark green

BRN 

1817655

CAS DataBase Reference

21803-75-8(CAS DataBase Reference)

Safety

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-20/21/22

Safety Statements 

26-36/37-36/37/39

RIDADR 

3276

WGK Germany 

3

Hazard Note 

Harmful/Irritant

HazardClass 

6.1

PackingGroup 

III

HS Code 

29269090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

4-Amino-3-chlorobenzonitrile Chemical Properties,Usage,Production

Chemical Properties

white to light yellow crystal powder

Definition

ChEBI: 4-Amino-3-chlorobenzonitrile is a member of benzenes and a nitrile.

Synthesis

Step 1: N-chlorosuccinimide (12.4 g, 93 mmol) was slowly added to a stirred solution of 4-aminobenzonitrile (10.0 g, 84.7 mmol) in acetonitrile (100 mL) at 90 °C. After the addition was completed, the reaction mixture was stirred continuously at 90 °C for 2 hours. After completion of the reaction, the mixture was cooled to room temperature and concentrated under reduced pressure. The concentrated residue was dissolved in 500 mL of dichloromethane and washed with 5% aqueous sodium hydroxide. The organic layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure to give 4-amino-3-chlorobenzonitrile as a brown solid (12.2 g, 95% yield).1H NMR (300 MHz, CDCl3) δ 7.54 (d, J = 1.7 Hz, 1H), 7.35 (dd, J = 1.8,8.4 Hz, 1H), 6.77 (d, J = 8.5 Hz, 1H ), 4.63 (br s, 2H).

References

[1] Synlett, 1999, # 12, p. 1984 - 1986
[2] Patent: EP2766359, 2016, B1. Location in patent: Paragraph 0383
[3] Journal of Organic Chemistry, 2017, vol. 82, # 14, p. 7529 - 7537
[4] Organic Letters, 2008, vol. 10, # 1, p. 113 - 116
[5] Synthesis, 1985, # 6/7, p. 669 - 670