pinacol 重排

31. The pinacol rearrangement proceeds via intermediate. (A) carbanion (B) carbocation (C) radical (D) lone...
61. What is the major product of the following reaction? (A) (B) (C) (D) (E) none of the above.
48. Upon heating with aqueous acid, pinacol (2,3-dimethylbutane-2,3-diol) rearranges. What is the product? (A) (B) (C) (...
23. 下列反應式的最終主要產物為何？ (A) (B) (C) (D) (E)
20. 下列反應方程式中，試劑 B 為何？ (A) H2O2 / NaOH (B) mCPBA / AcOH (C) Zn / CH2I2 (D) CCl2HCOCl / Et3N (E) CH2N2 / Pd(...
46. In the following reaction, which compound is the major product?
29. 下列反應的主要產物為何？
35. 下列反應的主要產物是____________。 (A) (B) (C) (D)

寬識(已上榜、感謝阿摩與前輩)