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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2083416Generated: November 1, 2026

Phosphorus sulfide (P2S5) → 8-Cyano-3-methyl-5,6,7,8-tetrahydroquinoline

https://huagongshe.com/reaction/2083416

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus sulfide (P2S5)HCID 14817—
Reactant3-Methyl-5,6,7,8-tetrahydroquinoline-8-carboxamideHCID 12278227—
Product8-Cyano-3-methyl-5,6,7,8-tetrahydroquinolineHCID 12278210—

Reaction Steps

3-Methyl-5,6,7,8-tetrahydroquinoline-8-carboxamide was treated with P2S5 to give 3-methyl-8-cyano-5,6,7,8-tetrahydroquinoline which was treated with H2S as described in Example 8 giving the title compound as colourless needles from benzene m.p. 151° (50% yield) (Found: C, 63.71; H, 6.85; N, 13.38% C11H14N2S requires: C, 64.04; H, 6.84; N, 13.58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04085215
Source datasetuspto-grants-1978_04
ORD IDord-9554c7342bd84a57a982007a986d3629
Source noteuspto-grants-1978_04