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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 330298Generated: October 31, 2026

Hydrochloric Acid → HCID 19869692, compound

https://huagongshe.com/reaction/330298

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium BicarbonateHCID 516892—
Reactantethyl imidazo[2,1-b][1,3]benzothiazole-2-carboxylateHCID 1480574—
ReactantLithium borohydrideHCID 4148881—
SolventEthanolHCID 702—
ProductHCID 19869692HCID 1986969296.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 4.0 g of ethyl imidazo[2,1-b]benzothiazole-2-carboxylate in dry T.H.F. was stirred with 1.5 g of lithium borohydride for 48 hours at room temperature under dry nitrogen. The mixture was treated with an excess of 2N hydrochloric acid and warmed to 50° C. for 2 hours to decompose the complex. The mixture was made alkaline with aqueous sodium bicarbonate and extracted with ethyl acetate. The extracts were dried over magnesium sulfate and evaporated to dryness under reduced pressure to obtain 3.27 g (96.4% yield) of 6-methoxy-imidazo[2,1-b]benzothiazole-2-methanol as a colorless solid melting at 189° to 190° C. (EtOH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04895863
Source datasetuspto-grants-1990_01
ORD IDord-6fe6b48c08d14785a556bfed9cbc3b5a
Source noteuspto-grants-1990_01