Skip to main content
Get your brand new Wikispaces Classroom now
and do "back to school" in style.
Pages and Files
UC on ChemSpider
Alicia's Masters Thesis
Open Web Drug Dev.
To Do List
Ugi NMR Analysis
Monitor the formation of an aromatic imine by HMR and CMR in CDCl3
Make up separate 1 mL of 1M solutions of piperonal and 5-methylfurfurylamine in CDCl3.
Take HMRs and CMRs of the aldehyde and amine. Use 5 sec relaxation time and acquire for about 15 mins for the CMR. This should be good enough based on
at 1M in methanol.
Combine the two solutions into a 1 dram vial and shake vigorously then transfer to an NMR tube.
Take HMR at 5, 10 and 20 minutes after mixing.
Take CMR at 25 min after mixing.
Take HMR at 40 min after mixing.
Take CMR at 45 min after mixing.
Take HMR at 80 mins after mixing.
Take CMR at 85 mins after mixing.
Continue to take NMRs after interval doubling until no more change is observed.
Use methanol-d4 instead of CDCl3.
Use phenylacetaldehyde instead of piperonal to see the difference with an aliphatic aldehyde.
We expect the aromatic aldehyde to be slower
Use 30 and 60 sec relaxation times to approach quantitative peak heights in CMR.
help on how to format text
Turn off "Getting Started"