Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2058804Generated: October 31, 2026

p-Toluenesulfonic acid → 2,3,5,6,7,8-Hexahydro-1,4-benzodithiine

https://huagongshe.com/reaction/2058804

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantCyclohexanone, 2-hydroxy-HCID 10785—
Reactant1,1-EthanedithiolHCID 33645—
Product2,3,5,6,7,8-Hexahydro-1,4-benzodithiineHCID 32290375.1%

Reaction Steps

The method of Example 4 was used, using 2-hydroxycyclohexanone (10 g), ethane dithiol (8.3 g) and p-toluenesulphonic acid to give 5,6,7,8-tetrahydro-1,4-benzodithian as a brownish oil (not distilled), yield 75.1%. NMR (CDCl3) 3.14 δ, 1.5-2.3 δ (two overlapping complex multiplets).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04319033
Source datasetuspto-grants-1982_03
ORD IDord-f5bc392fd0ce4aeaa5585f0d5ee0f1da
Source noteuspto-grants-1982_03