“…The general approach involves cross-aldol condensation of a cycloalkanone with an aromatic aldehyde [11], commonly catalysed by a base [12] or an acid [13], (Scheme 1). Subsequently improved methodologies have been reported that used various reagents/Lewis acids such as (EtO) 4 Si/CsF or KF [14], Cp 2 ZrH 2 -NiCl 2 [15], Rh(III)-porphyrin [16], Cp 2 TiPh 2 [17], BMPTO under microwave irradiation [18], RuCl 3 [19], TiCl 3 OTf [20], FeCl 3 -[bmim] [BF 4 ] [21,22], SmI 3 [23], KF-Al 2 O 3 under ultrasound irradiation [24], TMSCl-NaI [25], H 2 SO 4 -SiO 2 [26], Yb(OTf) 3 [27], Et 2 NTMS-LPDE [28], and [(Me 3 Si) 2 N] 3 Ln(-Cl)Li(THF) 3 under microwave irradiation [29]. However, one or more of the disadvantages such as the use of costly catalysts, use of hazardous agents (nickel compounds are toxic, perchlorates are potentially explosive, silica sulfuric acid is corrosive etc.…”