CRSEXP044

=Scheme= acetic anhydride in RA ethanol in RA ethyl acetate in RA acetic acid in RA esterification in RA

=Researchers= Andrew Buss Reaction Attempts Kayla Gogarty Reaction Attempts

=Objective= To explore the rate of reaction and to observe the products that are produced in a mixture of ethanol and acetic anhydride under standard conditions and in the absence of a catalyst via HNMR spectroscopy. D2O was used as the external reference in the outer coaxial NMR tube (the coaxial system has been shown to shift peaks).

=Procedure=

=Results= Time: 2 hours [|CRSEXP044A-NMR1] pure acetic anhydride [|CRSEXP044B-NMR1] pure ethanol [|CRSEXP044E-NMR1] one drop ethanol in excess acetic anhydride

Time: 18 hours [|CRSEXP044A-NMR2] pure acetic anhydride [|CRSEXP044B-NMR2] pure ethanol [|CRSEXP044E-NMR2] one drop ethanol in excess acetic anhydride

=Discussion=

=Conclusion=

=Log= 16:45-Prepared five mixtures CRSEXP043A- pure acetic anhydride CRSEXP043B- pure ethanol CRSEXP043C- Half by volume acetic anhydride and half by volume ethanol CRSEXP043D- one drop acetic anhydride in excess ethanol CRSEXP043E- one drop ethanol in excess acetic anhydride 18:30-HNMR of the three mixtures (A, B, E) were taken (There was not enough sample to get HNMR spectra of B and C.) 16 scans, 1second relaxation delay, 45 degree pulse angle, CDCl3 as solvent
 * 14-04-09**

10:37-HNMR of the three mixtures (A, B, E) were taken (There was not enough sample to get HNMR spectra of B and C.) 16 scans, 1second relaxation delay, 45 degree pulse angle, CDCl3 as solvent
 * 14-04-10**