| 2 | 1/1 | 返回列表 |
| 查看: 501 | 回復(fù): 1 | |||
| 本帖產(chǎn)生 1 個 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | |||
[求助]
求翻譯,謝謝,站內(nèi)信求大神幫忙
|
|||
|
2-aminoalochols 2.4. Analytical method The concentration of reaction components was determined by Ceres 800, a high resolution GC equipped with FID. A 30 m × 0.32 mm BPX-5 capillary column packed with 5% phenylpolysilphenylene-siloxane was used for analysis. The product was confirmed by using GCMS.1 HNMR and13 CNMR were obtained with Bruker DPX 300 ( 1 H 300MHz and13 C75.5 MHz) spectrometers using CDCl 3 . Chemical shiftsare expressed in parts per million (ppm) using tetramethylsilane as an internal standard. 1 HNMR and13 CNMR (CDCl 3 ) forthe desiredproduct are as follows: 3-ethyl-1,3-oxazolidin-2-one:colorless oil, yield – 85%;1 HNMR (CDCl 3 ): ı 4.28–4.24 (m, 2H), 3.52–3.48 (m,2H), 3.25 (q, J = 7.2, 2H), 1.10 (t, J = 7.1 3H);13 C(CDCl3): 158.41, 61.79, 44.09, 39.01, 12.69. |
木蟲 (正式寫手)
|
2-氨基醇 分析方法 反應(yīng)液濃度用Ceres 800高分辨氣相(氫火焰離子檢測器)檢測,使用30 m × 0.32 mm BPX-5毛細(xì)管柱,填料為5%聚亞苯基硅氧烷。用GC-MS確認(rèn)產(chǎn)物。 測定H1-NMR譜 和C13-NMR譜使用 Bruker DPX 300 ( H 300MHz and C13 75.5 MHz) ,以氘仿為溶劑,化學(xué)位移用ppm表示,四甲基硅烷為內(nèi)標(biāo)注 目標(biāo)物的H譜和C譜如下: 3-乙基-1,3-惡唑啉2-酮, 無色油狀物,產(chǎn)率85% HNMR (CDCl 3 ): ı4.28–4.24 (m, 2H),3.52–3.48 (m,2H), 3.25 (q, J = 7.2, 2H), 1.10 (t, J = 7.1 3H); C(CDCl3): 158.41, 61.79, 44.09, 39.01, 12.69. |

| 2 | 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] 307求調(diào)劑 +3 | 超級伊昂大王 2026-03-24 | 3/150 |
|
|---|---|---|---|---|
|
[考博] 26申博自薦 +3 | whh869393 2026-03-24 | 3/150 |
|
|
[考研] 085600材料與化工調(diào)劑 +7 | A-哆啦Z夢 2026-03-23 | 12/600 |
|
|
[考研] 一志愿國科過程所081700,274求調(diào)劑 +3 | 三水研0水立方 2026-03-23 | 3/150 |
|
|
[考研] 284求調(diào)劑 +3 | yanzhixue111 2026-03-23 | 6/300 |
|
|
[考研] 384求調(diào)劑 +3 | 子系博 2026-03-22 | 6/300 |
|
|
[考研] 291 求調(diào)劑 +4 | 化工2026屆畢業(yè)?/a> 2026-03-21 | 5/250 |
|
|
[考研] 307求調(diào)劑 +3 | 余意卿 2026-03-21 | 3/150 |
|
|
[考研] 尋找調(diào)劑 +4 | 倔強(qiáng)芒? 2026-03-21 | 4/200 |
|
|
[考研] 311求調(diào)劑 +3 | 26研0 2026-03-20 | 3/150 |
|
|
[考研] 生物學(xué)調(diào)劑 +5 | Surekei 2026-03-21 | 5/250 |
|
|
[考研] 285求調(diào)劑 +6 | ytter 2026-03-22 | 6/300 |
|
|
[考研] 一志愿華中科技大學(xué)071000,求調(diào)劑 +4 | 沿岸有貝殼6 2026-03-21 | 4/200 |
|
|
[考研] 085600材料與化工306 +4 | z1z2z3879 2026-03-21 | 4/200 |
|
|
[考研] 一志愿重慶大學(xué)085700資源與環(huán)境專碩,總分308求調(diào)劑 +3 | 墨墨漠 2026-03-18 | 3/150 |
|
|
[考研] 288求調(diào)劑 +16 | 于海海海海 2026-03-19 | 16/800 |
|
|
[考研] 353求調(diào)劑 +3 | 拉鉤不許變 2026-03-20 | 3/150 |
|
|
[考博] 申博26年 +3 | 八6八68 2026-03-19 | 3/150 |
|
|
[考研] 材料考研調(diào)劑 +3 | xwt。 2026-03-19 | 3/150 |
|
|
[考研] 考研求調(diào)劑 +3 | 橘頌. 2026-03-17 | 4/200 |
|