4-TERT-BUTYLCYCLOHEXANONE DIETHYL ACETAL

4-TETRAHYDRO-1H-PYRROL-1-YLPENT-3-EN-2-ONE

2-CHLOROETHYL P-TOLUENESULFONATE

4-Methylbenzenesulfonic anhydride

Pyridinium toluene-4-sulphonate

Pyridinium toluene-4-sulphonate

4-TOLYL-N-FLUORO-N-METHYLSULPHONAMIDE

4-(Trifluoromethyl)benzoic acid

4-TRIMETHYLSILYL-3-BUTYN-2-OL

4-TRIMETHYLSILYL-3-BUTYN-2-OL