1) Reduce p-isobutylacetophenone to an alcohol using sodium borohydride 2) Convert alcohol group to a chloride using hydrochloric acid 3) Use magnesium to convert to Grignard reagent 4) Use carbon dioxide and hydrochloric acid to create Ibuprofen
Decomposing excess borane after a reduction with in-situ generated borane from sodium borohydride and iodine. How is borane generated? Borane (BH3, also called trihydridoboron) is a highly flammable colourless gas what ignites easily and forms a complex with a lot compound (tetrahydrofuran, dimethylsulfide, phosphines ect.). When it contacts with water, it decomposes to give boric acid and hydrogen gas (BH3 + 3 H2O = B(OH)3 + 3 H2)
What Is NFPA 704 or the Fire Diamond?: This is an example of a NFPA 704 warning sign. The four colored quadrants of the sign indicate the types of hazards presented by a material. This is the NFPA 704 for sodium borohydride.