Be sure to run three lanes; one with starting material, reaction, and co-spot. also be sure to completely evaporate the acetic acid from the plate before developing. record the tlc in your notebook. when the reaction is complete according to tlc (the reaction should take less than 20 minutes), quench by adding water (15 ml) and a saturated solution of sodium bisulfite (2 ml). add an additional ml of the bisulfite solution if the orange color persists. stir the solution for 5 minutes. place the reaction flask in an ice bath for 5 minutes and collect the crystals obtained using a hirsch funnel. recrystallize the product from an appropriate solvent. you will need to do some trial recrystallizations using a small amount of your crude product in a test tube. remember that you need a solvent or a mixture of solvents in which the compound is soluble warm but not at rt or cold. after isolation of your purified crystals, dry the product for at least 24 hours isn a desiccator as it is important to have no water present in the following reaction (how can this drying be accomplished in less time? no, not by using an oven…). obtain and record the following information in your notebook: 1.purified product description (color, physical state, etc.) 2.purified weight/yield 3.tlc analysis of the purified material 4.melting point of the purified material 5.ir of the purified material ii-02