25. 5ef016c4b43c7.jpg進行克萊森重排(Claisen rearrangement)反應的產物為
(A)5ef016d535b20.jpg
(B) 5ef016e5e7d04.jpg
(C)5ef016f516906.jpg
(D)5ef01707a3ac3.jpg

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統計: A(20), B(40), C(54), D(380), E(0) #2363104

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76. Provide the structure of the major organic product in the following reaction.
61f2187b0e8b8.jpg#s-198,71
(A) 61f21896bc9d0.jpg#s-85,74
(B) 61f218a9aac31.jpg#s-84,78
(C) 61f218bebce8b.jpg#s-100,51
(D) 61f218d21c94d.jpg#s-102,55
(E) none of these
答案:C
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23. What is the following name reaction?
1037009-0-5eb86ab5ec970.png#s-458,69 
(A) Friedel-Crafts alkylation
(B) Friedel-Crafts allylation
(C) Claisen rearrangement
(D) Ritter reaction
(E) Curtius rearrangement
答案:C
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49. Predict the major product for the following Claisen rearrangement.
943177-0-5eb82d44ce760.png#s-187,102943177-1-5eb82d467d15b.png#s-289,104 943177-2-5eb82d482b6b7.png#s-347,102
(A) I
(B) II
(C) III
(D) IV
(E) None of the above
答案:D
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這題考的是克萊森重排 (Claisen...
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