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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47751Generated: October 27, 2026

Hydrochloric Acid → 4-(3-Nitrophenyl)-4,5-dihydro-1,3-thiazol-2-ylamine

https://huagongshe.com/reaction/47751

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-(tert-butyl)-N'-[2-hydroxy-1-(3-nitrophenyl)ethyl]thioureaHCID 22747831—
Product4-(3-Nitrophenyl)-4,5-dihydro-1,3-thiazol-2-ylamineHCID 996454290.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

The process is performed as in Example 2, starting with 1.49 g of N-(tert-butyl)-N′-[2-hydroxy-1-(3-nitrophenyl)ethyl]thiourea in 14 cm3 of aqueous 6 N hydrochloric acid by heating to a temperature in the region of 100° C. for 2 h 30 min. By means of an identical work-up, 1.01 g of 4-(3-nitrophenyl)-4,5-dihydro-1,3-thiazol-2-ylamine are obtained in the form of a cream-colored solid melting at 232° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06699895B2
Source datasetuspto-grants-2004_03
ORD IDord-05c2d3a645c04bf08ae152fb17601f80
Source noteuspto-grants-2004_03