6-Quinolinylmethanol

6-Quinolinylmethanol Property

Melting point:

79-80 ºC

Boiling point:

334.8±17.0 °C(Predicted)

Density 

1.218±0.06 g/cm3(Predicted)

storage temp. 

Inert atmosphere,Room Temperature

pka

14.02±0.10(Predicted)

Appearance

Light brown to yellow Solid

CAS DataBase Reference

100516-88-9

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

6-24/25-26-36/37/39

HazardClass 

IRRITANT

HS Code 

29334900

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

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.

P321Specific treatment (see … on this label).

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

P362Take off contaminated clothing and wash before reuse.

P501Dispose of contents/container to..…

6-Quinolinylmethanol Chemical Properties,Usage,Production

Chemical Properties

Light yellow or pink powder

Synthesis

General procedure for the synthesis of 6-hydroxymethylquinoline from methyl 6-quinolinecarboxylate: cooling of a 0.2 M solution of methyl 6-quinolinecarboxylate (0.300 g, 1.60 mmol) in THF (8 mL) and a 0.6 M solution of diisobutylaluminum hydride (DIBAL) (0.860 mL, 4.81 mmol) in THF in an acetone-dry ice bath at -78 °C ( 8mL). The DIBAL solution was transferred to the methyl ester solution via cannula and the resulting solution was stirred for 1 h at 0 °C. The reaction was quenched by the addition of methanol (8 mL) and acetic acid (1.37 mL, 24.0 mmol) at 0 °C. After stirring for 5 min, saturated sodium tartrate solution (16 mL) was added. Stirring was continued for 20 min, followed by dilution of the reaction mixture with EtOAc (50 mL) and water (10 mL). The aqueous layer was extracted with EtOAc (3 x 50 mL). The organic phases were combined and washed once with 15 mL of water. The organic layer was dried with Na2SO4, filtered and concentrated under reduced pressure. Purification by column chromatography (50-90% EtOAc/hexane) afforded 0.236 g (93%) of 6-hydroxymethylquinoline (S3a) as a pale yellow oil.1H NMR (500 MHz, CDCl3): δ 4.89 (s, 2H), 7.35 (dd, 1H, J=4.0,8.0), 7.65 (dd, 1H, J=1.5, 9.0), 7.77 (s, 1H), 8.01 (d, 1H, J=9.0), 8.08 (d, 1H, J=4.0), 8.80 (dd, 1H, J=1.5,4.0).13C-NMR (125MHz, CDCl3): δ64.8,121.5,125.0,128.3,129.0,129.4. 136.4,139.9,147.7,150.2. HRMS-FAB (m/z): calculated value for [MH]+ C10H10NO, 160.0762; measured value: 160.0766.

References

[1] Journal of the American Chemical Society, 2008, vol. 130, # 20, p. 6404 - 6410
[2] Patent: WO2009/75778, 2009, A2. Location in patent: Page/Page column 49-50
[3] Patent: WO2004/7491, 2004, A1. Location in patent: Page 55-56
[4] Patent: WO2017/40449, 2017, A1. Location in patent: Paragraph 00363
[5] Patent: WO2011/18454, 2011, A1. Location in patent: Page/Page column 56