Methyl iodide → HCID 10560555, compound

Temperature

-10 °C

To a solution of 8.4 g (33 mmol) of 4-hydroxybenzylamine hydriodide [M. Tiffeneau, Bull. Soc. Chim. Fr., 9, 819 (1911)] and 10.1 ml (7.3 g, 73 mmol) of triethylamine in 32 ml of MeOH stirred under N2 at ambient temperature was added gradually a solution of 2.2 ml (2.8 g, 38 mmol) of carbon disulfide in 12 ml of MeOH. After 1 hour, the resulting solution was cooled to -10° C. and treated gradually with a solution of 2 ml (4.7 g, 33 mmol) of iodomethane in 6 ml of MeOH. The solution was then stirred at room temperature for 2 hours. Next, the solution was concentrated to small volume and partitioned between ether and 0.2N HCl. The ethereal phase was washed further with 0.2N HCl followed by saturated NaCl. The ether solution was dried (MgSO4), filtered, and concentrated to an oil, which gradually solidified, affording 5.98 g. (85%), mp 90°-91° C.; homogeneous by TLC in 2:1 hexane-EtOAc.

1. concentrationNext, the solution was concentrated to small volume
2. custompartitioned between ether and 0.2N HCl
3. washThe ethereal phase was washed further with 0.2N HCl
4. dry with materialThe ether solution was dried (MgSO4)
5. filtrationfiltered
6. concentrationconcentrated to an oil, which
7. customaffording 5.98 g

ORD record

ord-8532c851b9d645d8901dc4516ce33e5a

Source dataset

uspto-grants-1993_01

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05177095