lithium aluminium tetrahydride; Amberlite IR-120 H(1+) 1.) THF, 70 deg C; 2.) methanol, reflux; Yield given. Multistep reaction;

With  disodium hydrogenphosphate; bis(2-tert-butyl-3-hydroxy-4-methylphenyl)sulphide; 3-chloro-benzenecarboperoxoic acid in  dichloromethane 8 h;  Heating;   

Multi-step reaction with 2 steps 1: 75 percent / Ph3P, Et3N / Pd(OAc)2 / dimethylformamide2: 90 percent / m-chloroperoxybenzoic acid, Na2HPO4, 2-t-butyl-3-hydroxy-4-methylphenyl sulfide / CH2Cl2 / 8 h / Heating