In a normal demand DielsâAlder reaction, the dienophile has an electron-withdrawing group in conjugation with the alkene; in an inverse-demand scenario, the dienophile is conjugated with an electron-donating group.Dienophiles can be chosen to contain a masked functionality.n a normal demand DielsâAlder reaction, the dienophile has an electron-withdrawing group in conjugation with the alkene; in an inverse-demand scenario, the dienophile is conjugated with an electron-donating group.
A standard echocardiogram or a fetal echocardiogram test usually takes about 30 to 60 minutes. A stress echocardiogram usually takes between 60 and 90 minutes.
Best Answer: It depends on your hospital or doctor's office. Echocardiograms only take about 20-30 minutes for a Cardiologist to interpret.It will depend on the number of Echocardiograms that need to be interpreted by the Cardiologist. You should be able to get your results within one day. You can call the doctor's office and ask for the results.est Answer: It depends on your hospital or doctor's office. Echocardiograms only take about 20-30 minutes for a Cardiologist to interpret.