21. Sodium borohydride is an odorless white to gray-white microcrystalline powder which often forms lumps. 22. Reduction with sodium borohydride in ethanol affords the neutral "'Borromeand " '. 23. Tosylhydrazones can be reduced to the corresponding alkanes with reagents such as sodium borohydride and borane. 24. The nitrilium ions thus formed can then be reduced to secondary amines with sodium borohydride in diglyme. 25. Following which thorium borohydride can be easily isolated, as it sublimes out of the reaction mixture. 26. It is an intermediate in the preparation of sodium borohydride and is a popular reagent in organic chemistry. 27. Borane tert-butylamine complex is prepared by the reaction of sodium borohydride with t-butylammonium chloride. 28. It uses water added to sodium borohydride which releases hydrogen fuel for a proton exchange membrane fuel cell. 29. (+ )-Leucopelargonidin can be synthesized from ( + )-aromadendrin by sodium borohydride reduction. 30. Particularly common are sodium borohydride ( NaBH 4 ) and lithium aluminium hydride and hindered reagents such as DIBAL.
