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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 617266Generated: October 25, 2026

Sodium Hydroxide → 7-Bromobenzo[d]thiazol-5-amine

https://huagongshe.com/reaction/617266

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantStannous chloride dihydrateHCID 61436—
Reactant7-Bromo-5-nitrobenzothiazoleHCID 22728031—
SolventHydrochloric AcidHCID 313—
Product7-Bromobenzo[d]thiazol-5-amineHCID 227280379,687.5%

Reaction Conditions

Temperature25 °C

Reaction Steps

To a solution of SnCl2.2H2O (0.5 g, 2.2 mmol) in 5 mL of HCl was added 5-nitro-7-bromobenzothiazole (82 mg, 0.32 mmol) in a portion and the resulting reaction mixture was stirred for 1 h at 25° C. The reaction mixture was basified with aq. NaOH and extracted with EtOAc. Organic extracts were dried over Na2SO4 and concentrated in vacuo to yield 70 mg (31 mmol, 96%) of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05948804
Source datasetuspto-grants-1999_09
ORD IDord-35e96049b551433887253efe5de5f8d2
Source noteuspto-grants-1999_09