p-Toluenesulfonic acid → HCID 10797842, compound

Participants

Reaction Steps

7 g (36.4 mmol) of 1-methyl-3-(3-methylbut-2-enyl)sulphanylbenzene and 50 ml of toluene are introduced into a round-bottomed flask and 10.4 g (54.6 mmol) of para-toluenesulphonic acid are added. The mixture in refluxed for four hours. The reaction medium is evaporated to dryness, the residue is taken up in water and ethyl ether and the organic phase is separated out after settling has taken place, dried over magnesium sulphate and evaporated. 6.8 g (97%) of the thiochroman are collected in the form of a brown oil.

Provenance & Evidence