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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 857789Generated: October 29, 2026

Lithium borohydride → HCID 21866249, compound

https://huagongshe.com/reaction/857789

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium borohydrideHCID 4148881—
ReactantHCID 21866306HCID 21866306—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21866249HCID 21866249—

Reaction Steps

To a stirred solution of 3-chloro-4-(4-chloro-2-methylphenyl)-1,2,5-thiadiazole (0.503 g, 2.05 mmol) in THF (5.0 mL) was added 2 M lithium borohydride in THF (2.05 mL, 4.10 mmol). The reaction was stirred at ambient temperature for 15 min then was quenched with water and extracted into EtOAc. The organic phase was dried (Na2SO4) and reduced in vacuo. The residue was purified by flash chromatography (eluting with CH2Cl2/hexanes gradient, 1–15% CH2Cl2). 3-(4-Chloro-2-methylphenyl)-1,2,5-thiadiazole was isolated as a solid. 1H NMR (CDCl3, 400 MHz) δ 2.49 (s, 3H), 7.30 (d, J=8.2 Hz, 2H), 7.34 (s, 1H), 7.53 (d, J=8.2 Hz, 1H), 8.71 (s, 1H); MS m/z=211.4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07144899B2
Source datasetuspto-grants-2006_12
ORD IDord-8361b420cddc4db6adfe733272c77706
Source noteuspto-grants-2006_12