Acetamidine monohydrochloride → HCID 178433460, compound

Temperature

23 °C

According to the procedure of D. J. Brown et al., J. Chem. Soc. 1964, 3204, a solution of 9.2 g (400 mmol) of sodium metal dissolved in 200 mL of methanol was treated first with 19.8 g. (210 mmol) of acetamidine hydrochloride and then with 34.4 mL (34.8 g, 200 mmol) of diethyl methyl malonate. The reaction mixture was heated to reflux for 4 hours, cooled to 23° C., and filtered. The filtrate was concentrated in vacuo. The residue from the filtrate and the isolated solids were combined and dissolved in water (300 mL). The aqueous solution was acidified with aqueous 3N HCl (133 mL). The fine white solid which precipitated from this solution was isolated by filtration and dried in vacuo to give 24.9 g (89%) of pure product, m.p. 300° C.

1. additionwas treated first with 19.8 g
2. temperatureThe reaction mixture was heated
3. temperatureto reflux for 4 hours
4. filtrationfiltered
5. concentrationThe filtrate was concentrated in vacuo
6. dissolutiondissolved in water (300 mL)
7. customThe fine white solid which precipitated from this solution
8. customwas isolated by filtration
9. customdried in vacuo

ORD record

ord-3f8b4e9cdc9b47e5bcc595e897d380a4

Source dataset

uspto-grants-1986_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04617393