| 查看: 287 | 回复: 1 | |||
| 当前主题已经存档。 | |||
[交流]
【求助完毕】急急急！！！15金币 请您帮忙翻译一段话！谢谢您的帮忙！！
|
|||
|
反应原理是：此物质中硝基及三氟甲基均为吸电子基团，故其邻位的两个氯比较活泼，且硝基的吸电子性比三氟甲基强，如果我们调整两种原料合适的比例关系，那么只会取代硝基邻位的氯。我们将所得到的衍生化试剂与哌嗪进行反应，从质谱信息上我们可以看到它们成功的发生了反应，但是最佳的反应条件还有待进一步的摸索。 [ Last edited by qingshaojun0823 on 2009-9-26 at 15:22 ] |
回复此楼» 猜你喜欢
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有3人回复
-
考博求助
已经有3人回复
-
售SCI一区文章，我:8.O.551.O.5.4,科目全,可伽急
已经有5人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.5.4,科目全,可+急
已经有4人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.5.4,科目全,可+急
已经有5人回复
-
售SCI-T0P文章，我:8O.5.5.1.O.54,科目齐全,可+急
已经有9人回复
-
售一区SCI文章T0P，我:8O.551.O54,科目全,可十急
已经有9人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.5.4,科目全,可+急
已经有10人回复
-
售SCI一区文章，我:8.O.551.O.5.4,科目全,可伽急
已经有6人回复
-
售SCI一区T0P文章，我:8O.55.1.O.54,科目全,可伽急
已经有9人回复
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
linghanyuan(金币+2,VIP+0):貌似很专业，呵呵，欢迎常来 7-23 08:51
chual1020(金币+15,VIP+0): 7-23 14:19
linghanyuan(金币+2,VIP+0):貌似很专业，呵呵，欢迎常来 7-23 08:51
chual1020(金币+15,VIP+0): 7-23 14:19
| The reaction mechanism is as followings: due to the electron-withdrawing feature of nitro- and trifluoromethyl groups the chloro-groups on both ortho- positions are relatively reactive. In comparison to trifluoromethyl group nitro is a stronger electron-acceptor. Therefore, by tuning the stoichiometric ratio in the reaction one can certainly obtain product with substitution of purely the ortho- chloro-groups. The reaction of the as-prepared derivatives with Piperazine was successfully evidenced using mass spectroscopy; however, further optimization in the reaction condition is required. |
2楼2009-07-23 07:09:13
