I wanted to try LAH for ester reduction. We have 2.4M LAH in THF in our lab. My substrate(ester) is not soluble in THF, Diethyl ether, acetone, dioxane, DME, and acetonitrile but soluble in DMF. In the protocol, the solid LAH was dissolved in THF and added dropwise to the ester. When I followed the same protocol but used liquid LAH dissolved in THF and ester dissolved in DMF and proceeded to reaction, but the reaction was not successful with undesired products. Could anyone please provide suggestions on how to take care of the reaction and any other solvents suggestions? I need to reduce 2 sites on my substrate and tried using 2-5equivalents.