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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2270623Generated: October 29, 2026

Sulfur Dioxide → 1-Methylindole-2-sulfonyl chloride

https://huagongshe.com/reaction/2270623

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfur DioxideHCID 1119—
Reactant1-MethylindoleHCID 11781—
ReactantChlorosuccinimideHCID 31398—
ReactantHCID 178418306HCID 178418306—
SolventTetrahydrofuranHCID 8028—
Product1-Methylindole-2-sulfonyl chlorideHCID 22998502—

Reaction Steps

1-Methylindole-2-sulfonyl chloride was prepared by the method of Example 34 with 1-methylindole (7.8 mmols, 1.0 ml), t-BuLi (1.7 m, 9.4 mmols, 5.5 ml), sulfur dioxide, NCS (8.6 mmols, 1.2 g) and THF (15 ml). Flash chromatography (2% ethyl acetate/hexanes) provided 0.66 g (3%) of a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06331637B1
Source datasetuspto-grants-2001_12
ORD IDord-20d405444bd34814be6facdf98b415b7
Source noteuspto-grants-2001_12