4-(Bromomethyl)-7-(diethylamino)coumarin Property

Boiling point:

435.8±45.0 °C(Predicted)

Density 

1.407±0.06 g/cm3(Predicted)

pka

3.21±0.20(Predicted)

form 

powder to crystal

color 

Light yellow to Brown

InChI

InChI=1S/C14H16BrNO2/c1-3-16(4-2)11-5-6-12-10(9-15)7-14(17)18-13(12)8-11/h5-8H,3-4,9H2,1-2H3

InChIKey

JPBOBQNHSXLIBI-UHFFFAOYSA-N

SMILES

C1(=O)OC2=CC(N(CC)CC)=CC=C2C(CBr)=C1

Safety

HS Code 

2932.20.0500

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

4-(Bromomethyl)-7-(diethylamino)coumarin Chemical Properties,Usage,Production

Research

7-Diethylamino-4-methyl coumarin (DEACM) derivatives are widely used as photolabile protecting groups. The photolysis of 4-(Bromomethyl)-7-(diethylamino)coumarin (DEACM-Br) with Br as the leaving group was investigated by Takanoet al. The main reaction path was found to be the generation of radical D via homolytic C–Br bond cleavage. Interestingly, products derived from C-T, the triplet state of the carbocation intermediate (i.e., 7-(diethylamino)-4-methyl cation (C)), were identified, thereby confirming the existence of C-T for the first time[1].

References

[1] Ma-aya Takano."Photoreaction of 4-(Bromomethyl)-7-(diethylamino)coumarin: Generation of a Radical and Cation TripletDiradical during the C-Br Bond Cleavage." Organic Letters (2022).