InBr3-Catalyzed Deoxygenation of Carboxylic Acids with a Hydrosilane: Reductive Conversion of Aliphatic or Aromatic Carboxylic Acids to Primary Alcohols or Diphenylmethanes
direct reduction of aliphaticcarboxylicacids with a variety of functional groups to a primaryalcohol using the mild reducing reagent tetramethyldisiloxane (TMDS), in the presence of a catalytic amount of InBr3 has been developed. This simple reducing system, when used together with a hydrosilane, allows the preparation of the diphenylmethane derivative directly from an aromaticcarboxylicacid and