求合成Grignard reagent時, Alkyl halides反應性排序的解釋
as title
合成Grignard reagent時
Alkyl halides 對 Mg 的反應性依序為
R-I > R-Br > R-Cl > R-F R= Alkyl or Aryl group
wiki 寫說 R-F 幾乎不反應
根據wiki的反應機構圖
一開始是 Mg 把 halogen 抓下來
F 的電負度是halogen裡面最大的
應該最容易被抓下來, 所以反應性應該最大?
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推
06/21 18:46, , 1F
06/21 18:46, 1F
推
06/21 19:32, , 2F
06/21 19:32, 2F
→
06/21 19:51, , 3F
06/21 19:51, 3F
→
06/21 20:13, , 4F
06/21 20:13, 4F
推
06/21 20:37, , 5F
06/21 20:37, 5F
推
06/21 20:42, , 6F
06/21 20:42, 6F
→
06/21 20:44, , 7F
06/21 20:44, 7F
→
06/21 23:12, , 8F
06/21 23:12, 8F
→
06/21 23:13, , 9F
06/21 23:13, 9F
推
06/21 23:25, , 10F
06/21 23:25, 10F
推
06/21 23:29, , 11F
06/21 23:29, 11F
→
06/21 23:30, , 12F
06/21 23:30, 12F
→
06/21 23:33, , 13F
06/21 23:33, 13F
→
06/21 23:34, , 14F
06/21 23:34, 14F
→
06/21 23:36, , 15F
06/21 23:36, 15F
→
06/21 23:45, , 16F
06/21 23:45, 16F
→
06/21 23:47, , 17F
06/21 23:47, 17F
推
06/21 23:57, , 18F
06/21 23:57, 18F
→
06/22 00:06, , 19F
06/22 00:06, 19F
推
06/22 00:28, , 20F
06/22 00:28, 20F
→
06/22 11:23, , 21F
06/22 11:23, 21F
→
06/25 09:28, , 22F
06/25 09:28, 22F
→
06/25 09:28, , 23F
06/25 09:28, 23F
→
06/26 18:57, , 24F
06/26 18:57, 24F
→
11/09 09:32, , 25F
11/09 09:32, 25F
→
01/02 13:56,
5年前
, 26F
01/02 13:56, 26F
→
07/06 20:36,
5年前
, 27F
07/06 20:36, 27F