CRSEXP009

=Researcher= Cuepil Choi =Objective= To see if all of the 4-chlorobenzaldehyde could be converted to acetal. CRSEXP006 suggests ethylene glycol and 4-chlorobenzaldehyde may be successful in creating acetals through heating. =Procedure= 0.4 g of 4-chlorobenaldehyde and 15 g of ethylene glycol were added to a small erlenmeyer flask. Flask was heated on a hot plate at settings varying from 100-150 C. Mixture was taken off hot plate after 15 minutes. =Results= =Discussion= =Conclusion= Mixture =Log=
 * Aborted**

2013-07-18
13:25 mass of erlenmeyer flask 23.9169g 13:27 0.4209 g of 4-chlorobenzaldehyde added to flask 13:29 1.5285 g of ethylene glycol added to flask 13:35 temperature set to 150 C on hot plate, erlenmeyer flask put on hot plate. 13:40 hot plate lowered to 100 C 13:45 hot plate raised to 130 C, water vapor noticed at neck of the flask 13:49 mixture is cloudy, flask taken off of hot plate 14:08 top player filtered through kimtech-pipette filter, filtered layer added to inner NMR tube 14:16 flask set in ice bath 14:27 HNMR spectrum 1 taken of ethylene glycol and 4-chlorobenzaldehyde at 26.6 C with deuterated water in outer tube. deuterated water set to 4.8 ppm