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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1698097Generated: October 30, 2026

2-Chlorobenzothiazole → HCID 24804238, compound

https://huagongshe.com/reaction/1698097

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-ChlorobenzothiazoleHCID 11987—
ReactantHCID 57553399HCID 57553399—
CatalystHCID 178418397HCID 178418397—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 24804238HCID 2480423829.1%

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 2-chloro-1,3-benzothiazole (38 μL, 0.31 mmol), 5-(trimethylstannyl)pyridine-2-carboxamide (97 mg, 0.34 mmol) and Pd(PPh3)4 (35 mg, 0.03 mmol) in dry dioxane (2 mL) was heated under argon to 160° C. for 30 min in a microwave reactor. The precipitate was filtered off. Flash chromatography (DCM/MeOH 99:1→DCM/Acetone 1:1) gave the title compound (23 mg) as a white solid. 1H NMR δ 9.31 (dd, 1H) 8.63 (dd, 1H) 8.27 (br s, 1H) 8.26-8.19 (m, 2H) 8.16 (d, 1H) 7.83 (br s, 1H) 7.64-7.59 (m, 1H) 7.57-7.52 (m, 1H); MS m/z (M+H) 256.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163928B2
Source datasetuspto-grants-2012_04
ORD IDord-299ecfbc39d14a0ab391cab504964aa6
Source noteuspto-grants-2012_04