 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 3 | 1/1 | 返回列表 |
| 查看: 849 | 回復(fù): 2 | |||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
趙君紅銅蟲(chóng) (初入文壇)
|
[求助]
本科論文，關(guān)于合成，只翻譯一段摘要，求蟲(chóng)友幫忙，感謝
|
||
| 本實(shí)驗(yàn)以A為原料，乙醇為溶劑，80℃條件下，加保險(xiǎn)粉、硫氫化鈉發(fā)生取代和還原反應(yīng)，生成B。然后在70℃與甲醇發(fā)生關(guān)環(huán)反應(yīng)，生成C。以CsCO3、CuI、Pd(Pph3)4、為催化劑，DMF為溶劑將上步產(chǎn)物與碘苯在120℃條件下發(fā)生取代反應(yīng)，生成D。然后用二氯甲烷溶解產(chǎn)物，在室溫條件與MCPBA發(fā)生氧化反應(yīng)，活化吡啶環(huán)，最后將活化產(chǎn)物在115℃與三氯氧磷回流，對(duì)吡啶環(huán)四位進(jìn)行取代，生成終產(chǎn)物E。 |
回復(fù)此樓» 猜你喜歡
284求調(diào)劑
已經(jīng)有10人回復(fù)
-
一志愿山東大學(xué)藥學(xué)學(xué)碩求調(diào)劑
已經(jīng)有4人回復(fù)
-
07化學(xué)280分求調(diào)劑
已經(jīng)有4人回復(fù)
-
298-一志愿中國(guó)農(nóng)業(yè)大學(xué)-求調(diào)劑
已經(jīng)有12人回復(fù)
-
求材料，環(huán)境專業(yè)調(diào)劑
已經(jīng)有3人回復(fù)
-
335求調(diào)劑
已經(jīng)有5人回復(fù)
-
求調(diào)劑
已經(jīng)有7人回復(fù)
-
一志愿吉大化學(xué)322求調(diào)劑
已經(jīng)有4人回復(fù)
-
環(huán)境學(xué)碩288求調(diào)劑
已經(jīng)有8人回復(fù)
-
341求調(diào)劑(一志愿湖南大學(xué)070300)
已經(jīng)有6人回復(fù)
shiranjiang
金蟲(chóng) (正式寫(xiě)手)
- 翻譯EPI: 14
- 應(yīng)助: 12 (小學(xué)生)
- 金幣: 2856.9
- 散金: 50
- 紅花: 6
- 帖子: 686
- 在線: 86.6小時(shí)
- 蟲(chóng)號(hào): 3041741
- 注冊(cè): 2014-03-12
- 性別: MM
- 專業(yè): 金屬結(jié)構(gòu)材料
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
趙君紅: 金幣+25, 翻譯EPI+1 2014-06-16 18:10:21
趙君紅: 金幣+25, 翻譯EPI+1 2014-06-16 18:10:21
| A was used to be the raw material,ethyl alcohol was used as the solvent in this experiment,under the condition of 80 ℃, substitution and reduction reaction occured to generate B when adding sodium hydrosulfite and sodium hydrosulphide.Then,ring-formation reaction took place with methyl alcohol at 70 ℃ and C was generated.Substitution reaction occured under the condition of 120 ℃ to generate D by the product generated last step and iodobenzene when taking CsCO3, CuI, Pd (Pph3) 4 as the catalyst,DMF as the solvent.Then oxidation reaction took place with MCPBA and the product dissolved by dichloromethane at room temperature,activating the pyridine ring, finally backflow happened by using activation product and phosphorus oxychloride at 115 ℃,replacing the pyridine ring four and the end-product E was generated. |
2樓2014-06-16 15:51:31
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
趙君紅: 金幣+25 2014-06-16 18:10:26
趙君紅: 金幣+25 2014-06-16 18:10:26
| this experiment involves reacting A with hydrosulfite and sodium hydrosulfide in the presence of ethanol solution at 80℃，B is prepared though a substitution and reduction reaction. then C is obtained through a process of cyclization by B and methanol. the newly formed product is further reacting with iodobenzene at 120℃ by a substitution reaction to give D. to obtain an activation of pyridine ring, D is dissolved in dichloromethane and further occurring an oxidation reaction with MCPBA. the final activation production is fluxed with phosphorus oxychloride at 115℃ and undergoing a substitution reaction at the 4-position of pyridine to give the final product E. |
3樓2014-06-16 16:50:17
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 趙君紅 的主題更新
| 3 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 求材料，環(huán)境專業(yè)調(diào)劑 +3 | 18567500178 2026-03-18 | 3/150 |
|
|---|---|---|---|---|
|
[論文投稿] 急發(fā)核心期刊論文 +3 | 賢達(dá)問(wèn)津 2026-03-23 | 5/250 |
|
|
|
[考研] 070300，一志愿北航320求調(diào)劑 +3 | Jerry0216 2026-03-22 | 5/250 |
|
|
|
[考研] 276求調(diào)劑 +3 | YNRYG 2026-03-21 | 4/200 |
|
|
|
[考研] 一志愿西安交通大學(xué)材料工程專業(yè) 282分求調(diào)劑 +11 | 楓橋ZL 2026-03-18 | 13/650 |
|
|
|
[考研] 275求調(diào)劑 +6 | shansx 2026-03-22 | 8/400 |
|
|
|
[考研] 269專碩求調(diào)劑 +6 | 金恩貝 2026-03-21 | 6/300 |
|
|
|
[考研] 286求調(diào)劑 +10 | Faune 2026-03-21 | 10/500 |
|
|
|
[考研]
 一志愿東華大學(xué)控制學(xué)碩320求調(diào)劑
+3
|
Grand777 2026-03-21 | 3/150 |
|
|
|
[考研] 一志愿南大，0703化學(xué)，分?jǐn)?shù)336，求調(diào)劑 +3 | 收到VS 2026-03-21 | 3/150 |
|
|
|
[考研] 297求調(diào)劑 +11 | 戲精丹丹丹 2026-03-17 | 12/600 |
|
|
|
[考研] 311求調(diào)劑 +3 | 勇敢的小吳 2026-03-20 | 3/150 |
|
|
|
[考研] 一志愿重慶大學(xué)085700資源與環(huán)境總分308求調(diào)劑 +7 | 墨墨漠 2026-03-20 | 7/350 |
|
|
|
[考研] 299求調(diào)劑 +6 | △小透明* 2026-03-17 | 6/300 |
|
|
|
[考研] 一志愿武理材料305分求調(diào)劑 +6 | 想上岸的鯉魚(yú) 2026-03-18 | 7/350 |
|
|
|
[考研] 304求調(diào)劑 +7 | 司空. 2026-03-18 | 7/350 |
|
|
|
[考研] 求調(diào)劑，一志愿:南京航空航天大學(xué)大學(xué) ，080500材料科學(xué)與工程學(xué)碩，總分289分 +4 | @taotao 2026-03-19 | 4/200 |
|
|
|
[考研] 求調(diào)劑 +3 | @taotao 2026-03-20 | 3/150 |
|
|
|
[考研] 生物學(xué)調(diào)劑招人�。�！ +3 | 山海天嵐 2026-03-17 | 4/200 |
|
|
|
[考研] 288求調(diào)劑，一志愿華南理工大學(xué)071005 +5 | ioodiiij 2026-03-17 | 5/250 |
|