Original sentence: Conditions/substances to avoid are: heat, flame, ignition sources, water, moist air, strong acids and strong oxidizers.Even though the molecule is water-sensitive it can be used to perform reactions in an aqueous environment.Sodium cyanoborohydride (NaBH3(CN)) is a chemical compound.Sodium cyanoborohydride is a mild reducing agent, ideal for reducing imines selectively in the presence of aldehydes or ketones.Strong acids on sodium cyanoborohydride release hydrogen cyanide.The slow decomposition of sodium cyanoborohydride by water in the atmosphere also causes the release of hydrogen cyanide and care must be taken when opening containers, as the gas can build up within.This makes it excellent for performing reductive aminations and this reaction is known as the Borch Reaction
Edited sentence: Owing to the presence of the electron-withdrawing cyanide substituent, NaBH(CN)3 is far less nucleophilic than is sodium borohydride.Owing to this selectively, the reagent is ideal for reductive aminations.Sodium cyanoborohydride is a mild reducing agent, but reduces imines to amines in the presence of aldehydes or ketones.Sodium cyanoborohydride is the inorganic compound with the formula [Sodium|Na]]BH3(CN).The reagent is prepared by treating sodium cyanide with borane and from sodium borohydride and mercuric cyanide.The salt is mildly water-sensitive, but tolerates aqueous conditions.This colourless salt is widely used in organic synthesis for the reduction of imines.This reaction is known sometimes as the Borch Reaction