“…Na2CO3 [60,61,65]; iii, H2, Pd/C, EtOH [60,61,65] or Zn, NH4Cl, water, THF, EtOH [67] ; iv, Ph2O, 230C [68,69] or Bu3N, Ph2O, 230C [70,71] or tetraglyme, 280C [69]; v, Br2, (PhCO2)2, CCl4, h, reflux [72]; vi, Et4N + -CN, MeCN [72]; vii, DiBAL-H, CH2Cl2, -78C [72]; viii, (MeO)2CHNMe2, reflux [65,67,[73][74][75]; ix, (a) HCl, MeOH reflux, (b) aq. Na2CO3 [75]; x, SiO2, hexane, EtOAc [67,73,74]; xi, NH3, EtOH, autoclave [67] or NH3, EtOH, ambient temperature [74] or NH3, MeOCH2CH2OH, reflux [73]; xii, HNO3, H2SO4, 0C-20C [76][77][78] or KNO3, H2SO4 [79,80]; xiv, AcOH, 100C [78] or aq. HCl, reflux [81]; xiii, HgSO4, H2SO4, acetone, reflux [82].…”