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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1111370Generated: November 2, 2026

Iodoacetamide → 2-[2-Imino-6-(trifluoromethoxy)-1,3-benzothiazol-3(2H)-yl]ethanimidic acid

https://huagongshe.com/reaction/1111370

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodoacetamideHCID 3727—
ReactantRiluzoleHCID 5070—
SolventMethyl Ethyl KetoneHCID 6569—
Product2-[2-Imino-6-(trifluoromethoxy)-1,3-benzothiazol-3(2H)-yl]ethanimidic acidHCID 307641253%

Reaction Conditions

Temperature20 °C

Reaction Steps

The procedure is as in Example 15, starting with 2-amino-6-trifluoromethoxybenzothiazole (9.4 g) and iodoacetamide (14.8 g) in methyl ethyl ketone (50 cc). The mixture is heated for 18 hours to boiling and then cooled to a temperature in the region of 20° C. The precipitate formed is filtered off, then added to distilled water (100 cc) and treated with 1N sodium hydroxide (37 cc). The insoluble matter is filtered off, washed with distilled water (100 cc) and recrystallized in boiling methanol (100 cc). (2-Imino-6-trifluoromethoxy-3-benzothiazolinyl)acetamide (6.2 g), m.p. 228° C., is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04980356
Source datasetuspto-grants-1990_12
ORD IDord-9e0a47f1d6f042e6b0a50b5154782c04
Source noteuspto-grants-1990_12