25 What is the correct structure for 1-bromo-2,4-dimethoxybenzene? ОMe ОMe MeBr Me Br Br Meo Meo (8 00:46:19 Оме ОMe Skipped Print Multiple Choice O . ON
ring-opening metathesis polymerization (ROMP) of the norbornene 7. a. Write chemical reactions for the ring-opening metathesis polymerization derivative shown below. MeO-
Draw plausible mechanisms for the following: Meo OME Me Meo N Br OH THF, -20 °C 83% * so NH, I 2. 00 . Dagen - RSH SO NO SR INOZ NO2 NO2
provide the organic products for the following
Me Me.. .. Me Pr Et Br Me Et NaOH Br EtOH Me Me Me CI ETOH row how Br Meo Na Maximum size for new files: 3
a. Is ring opening of the epoxide in cortisol regiospecific? b. Is ring opening of the epoxide in arene oxides stereospecific? What features of the molecule led you to your choice? (Explain in 5 words or less.)
Additional problems: Draw a mechanism for the following transformation. 1) Me MeNHNH2 HOAC Meo Meo OMe Me- MeNHOH Meo Me OMe ОMe
9. (6pts each) Draw the product for the following multistep reaction. Hint: a ring is formed 1) Sodium Methoxide 2) H30+ 3) xs Et-MgBr 4) H30+ Meo OMe
9. (6pts each) Draw the product for the following multistep reaction. Hint: a ring is formed 1) Sodium Methoxide 2) H3O+ 3) xs Et-MgBr 4) H3O+ Meo ОMe
9. (6pts each) Draw the product for the following multistep reaction. Hint: a ring is formed 1) Sodium Methoxide 2) H30+ 3) xs Et-MgBr 4) H30+ Meo ОMe
Additional problems: Draw a mechanism for the following transformation. Me MeΝΗΝΗ, НОАс Meo Me Ome MeNHOH Meo Meo Me OMe