sigmatropic reaction

2. Claisen rearrangement of allyl phenyl ether to ο-allylphenol is a sigmatropic rearrangement. This rearrangement is a...
22. Which of the following terms describes the mechanism of a Claisen rearrangement reaction? (A) Electrophilic additi...
25. 進行克萊森重排(Claisen rearrangement)反應的產物為 (A) (B) (C) (D)
76. Provide the structure of the major organic product in the following reaction.(A)(B)(C)(D)(E) none of these
12. Chorismate mutase is an enzyme that catalyzes a pericyclic reaction that forms prephenate. What kind of a pericyclic...
36. 下列反應生成主要產物結構為何？ (A) (B) (C) (D)
28. 下列反應可生成的最終產物為何？ (A) (B) (C) (D) (E)
8. What is the major product of the following reaction? (A) I (B) II (C) III (D) IV (E) V

寬識(已上榜、感謝阿摩與前輩)