A mild and efficient method for the protection of carbonyl compounds as 1,5-dihydro-2,4-benzodithiepines using anhydrous iron (III) chloride dispersed on silica gel
A mild and efficient procedure for the protection of carbonyl compounds as 1,5-dihydro-2,4-benzodithiepines rapidly and in high yields is described by using 1,2-benzenedimethanethiol and anhydrous iron (III) chloride dispersed on silica gel as catalyst.
Montmorillonite KSF, a mild and efficient catalyst for benzodithiepination of carbonyl compounds
A mild and efficient procedure for the protection of carbonyl compounds as 1,5-dihydro-3H-2,4-benzodithiepines in high yields is described by using a readily available and inexpensive KSF clay catalyst.