Answer Happy

4. Comment on your how fast your reaction occurred compared to your peers (see the "class reaction times" document uploaded to Canvas). Propose some reasons why your reaction was faster (or slower) than your peers. (3 points) 5. A general trend that can be seen in the class data is that para-fluorobenzaldehyde reacts more faster than para-methoxybenzaldehyde. In the boxes below, draw resonance structures that explain this observation. Comment on how the resonance structures you draw justify the conclusions you stated in question #4 above (see the pre-lab lecture video for hints). (3 points) H Resonance structure: reacts more quickly Resonance structure: H H3C01 reacts more slowly
Expected student data Ketone acetone Reaction Time (seconds) 180 100 acetone 200 Aldehyde benzaldehyde p-fluorobenzaldehyde p-methylbenzaldehyde p-methoxybenzaldehyde benzaldehyde p-fluorobenzaldehyde p-methylbenzaldehyde p-methoxybenzaldehyde acetone acetone cyclohexanone cyclohexanone cyclohexanone cyclohexanone 500 300 180 450 >900
Notes 3/29 Tus solution cloudy autore 0.294 mL benzaldehyde 0.898 ml 294 ML 898 ul ~ 12 min solution hw color ~5min light gren ~ 28 min (started heating in water) (put inwater 31 min ppt starting start lomin for beaning 38 min saw lots of all 43 min took off heat (water) 50 min put in rebuth 60min out of ice bath vaccuum filt 986 recrystallire w/5ml ithana neon yellow
3. Show a mechanism for the formation of your aldol condensation product. (4 points) 11 нс Өok і с. 4. Н.С Н.С сн. C-CH H₂ | но Ко 요 - ск Asche нс-с с - 14",- изс: сҢ н д OH | Repeat steps again сто