p-Anisaldehyde was treated with isopropylthiol in the presence of p toluenesulfonic acid to give p anisaldehyde isopropyl mercaptal with 84.

• 茴香醛和异丙硫醇在对甲苯磺酸催化下发生反应；合成了相应的缩硫醛；产率达84.；9%25。