Tyramine → HCID 10632008, compound

Temperature

110 °C

1.28 g (9.33 mmol) of tyramine is added to a solution containing 1.00 g (8.84 mmol) of ethyl cyanoacetate in 13 mL of dimethylformamide under an inert atmosphere. The mixture is stirred at 110° C. for 4 hours, then at room temperature for 12 h. The reaction medium is then diluted in 100 mL of ethyl acetate and washed with 50 mL of an aqueous acid solution at pH=3. The aqueous phase is again extracted with 50 mL of ethyl acetate. The organic phases are combined, dried over magnesium sulphate, filtered and the solvent is evaporated under reduced pressure. The resulting viscous brown solid is then dissolved several times in toluene and the toluene azeotrope/DMF is evaporated. Finally, the solid is washed with dichloromethane and ether. The product is isolated in the form of a pale brown solid with a yield of 65%.

1. waitat room temperature for 12 h
2. washwashed with 50 mL of an aqueous acid solution at pH=3
3. extractionThe aqueous phase is again extracted with 50 mL of ethyl acetate
4. dry with materialdried over magnesium sulphate
5. filtrationfiltered
6. customthe solvent is evaporated under reduced pressure
7. dissolutionThe resulting viscous brown solid is then dissolved several times in toluene
8. customis evaporated
9. washFinally, the solid is washed with dichloromethane and ether
10. customThe product is isolated in the form of a pale brown solid with a yield of 65%

ORD record

ord-a1aeed7e10934394805f14340d094f98

Source dataset

uspto-grants-2014_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08815834B2