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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1601010Generated: October 30, 2026

Toluene → HCID 19365590, compound

https://huagongshe.com/reaction/1601010

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantTetrahydrofuranHCID 8028—
ReactantLawesson's reagentHCID 87949—
ReactantHCID 22397238HCID 22397238—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 19365590HCID 19365590—

Reaction Steps

To a solution of 4,7-Dihydro-5-carbamoyl-4-oxothieno[2,3-b]pyridine derivative (vih) in an appropriate solvent, e.g. toluene, tetrahydrofuran, dioxane, an equivalent amount or a small excess amount of thioamide reagent, e.g. Lawessons reagent, is added under room temperature or ice-cooling. The mixture is stirred at a temperature of 0° C. to 80° C., and subjected to refluxing under heating if required, to give a 4,7-dihydro-5-thiocarbamoyl-4-oxothieno[2,3-b]pyridine derivative (viih).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05977132
Source datasetuspto-grants-1999_11
ORD IDord-6d2f7a13fdd24184af00691dceafdc19
Source noteuspto-grants-1999_11