CRSEXP041

=Array Transformations in this Experiment= //in progress// [CJM]

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//in progress// [CJM] =Researcher= C. Jared Miller =Objective= To determine if mixing acetic anhydride and piperonal will form an acylal (1,1-diacetate) at room temperature without solvent and without a catalyst. =Procedure= Acetic anhydride was deposited into a glass vial with a screw top. About one third of the acetic anhydride from the vial was added to several small piperonal crystals in another glass vial, resulting in the crystals dissolving in the acetic anhydride. The solution and liquid were added to the inner compartments of NMR co-axial tubes. CDCl3 was in the outer component of one tube and the same outer tube was used for both inner tubes. HNMRs were taken starting at approximately 30 minutes after the mixture was prepared. =Results= [|HNMR of Acetic Anhydride] at about 30 min. [|HNMR of Acetic Anhydride and Piperonal] at about 30 min. [|HNMR of Acetic Anhydride and Piperonal] at about 69 hrs. =Conclusion= //in progress// [CJM] =Log= The experiment was started 31 January 2014. At 11:30am on 3 Feb. 2014 HNMR of mixture was performed again to determine if acetic anhydride and piperonal have reacted. [Follow the format for all experiments in this wiki about how to do the log - you must put dates, times and name objects that you will later refer to (like EXP041NMR-1) **JCB**]