Problem 38. Select the correct representation of the lowest energy Diets Alder transition state. H (b) OHC H H -H (a) OH
Posted: Mon May 16, 2022 10:50 pm
Problem 38. Select the correct representation of the lowest energy Diets Alder transition state. H (b) OHC H H -H (a) OHC H -H (d) ) H. -H OHC H (c) CHO Problem 39. From an exam. The decarboxylation step is very useful in the Dieckmann and in other condensation reactions studied in this course. Select the correct decarboxylation step. (b) HO HO (a) (d) (c) Problem 40. The last step in synthesis of the COX-2 inhibitor Vioxx involves an intramolecular cross-aldol followed by dehydration Select the correct mechanism that will lead to Vioxx Vioxox (Merck) Meos SO Me SO Me b SOME SO Me d abzon , ayon с