are 1 the use of anhydrous tin ii chloride instead of tin ii chloride dihydrate 2 the use of dimethylamine diisopropylamine trimethylamine or triethylamine in the 2 0 2 1 mole equivalence of anhydrous tin ii chloride to enhance the nucleophilicity or ligand ability in the substitutions of chloride compared to the use of triethylamine resulting in the formation of sncl 2 hnet 2 in high yield and giving a better reaction between the alcohol molecule and the tin atom of sncl 2 hnet 2 than that of sncl 2 net 3 and most importantly 3 the use of one of the suggested nonpolar aprotic solvents such as n heptane n hexane cyclohexane benzene toluene xylene and tetrahydrofuran instead of polar protic solvents such as alcohols to inhibit the formation of tin ii alkoxide self aggregates moreover nonpolar aprotic solvent also allow for the precipitation and therefore easy separation of et 2 nh hcl from the tin ii alkoxide in solution thus no further purification of tin ii alkoxide is required 4 the amount of alcohol used in this process is about 2 0 2 1 mole equivalence of the anhydrous tin ii chloride to reduce the aggregation of tin ii alkoxide in the presence of excess alcohol examples 1 for chemicals used in process for the preparation of liquid tin ii alkoxides sn or 2 are 1.