Why beat about the bush? An operationally simple and mild reaction based on the direct fixation of 11CO2 with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) has been developed for the synthesis of 11C-labeled carbamates at 75 °C within 10 minutes in radiochemical yields above 70 % (see scheme). This strategy should be immediately useful for the construction of new radiotracers for positron emission tomography and other applications.
If you can't find a tool you're looking for, please click the link at the top of the page to "Go to old article view". Alternatively, view our Knowledge Base articles for additional help. Your feedback is important to us, so please let us know if you have comments or ideas for improvement.