| 5 | 1/1 | 返回列表 |
| 查看: 452 | 回復(fù): 4 | ||
| 【懸賞金幣】回答本帖問(wèn)題,作者學(xué)不廢了將贈(zèng)送您 10 個(gè)金幣 | ||
學(xué)不廢了新蟲(chóng) (初入文壇)
|
[求助]
高分子 已有1人參與
|
|
|
有人知道VTPE 和P-VTPE 分別是什么材料嗎 發(fā)自小木蟲(chóng)IOS客戶端 |
至尊木蟲(chóng) (著名寫(xiě)手)
chlgan
新蟲(chóng) (初入文壇)
|
2.2. Synthesis of VTPE As show in Scheme S1, 9.0 g Bromotriphenylethylene and 5.09 g 4-formylphenylboronic acid were first dissolved in mixed solvent of THF(100 mL) and 2 M Na2COg aqueous solution (100 mL). The mixture was stirred at room temperature for 0.5 h in a 500 mL round bottom flask under nitrogen gas after the addition of 3g Pd(PPh.)A catalyst. Then the mixture was heated to 66°C and kept for 12h. After cooling to room temperature, the final solution was extracted by EA and dried under anhydrous sodium sulfate. The crude product was chromatographed through a silica gel column with PE as eluent to give final VTPE. HNMR (300 MHz, CDCl3): δ (ppm) = 5.16-5.24 (dd, 1H, J = 0.73 Hz,10.90 Hz), 5.70-5.80 (dd, 1H, J = 0.80 Hz, 17.57 Hz), 6.57-6.67 (dd,1H, J= 10.87 Hz, 17.57 Hz), 6.90-7.27 (m, 19 H). 發(fā)自小木蟲(chóng)IOS客戶端 |
新蟲(chóng) (初入文壇)
至尊木蟲(chóng) (著名寫(xiě)手)
chlgan
| 5 | 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 | |
|---|---|---|---|---|
|
[基金申請(qǐng)]
|
Doma 2026-03-01 | 10/500 |
|
|---|---|---|---|---|
|
[考研] 22408-273求調(diào)劑-擔(dān)任3個(gè)項(xiàng)目的負(fù)責(zé)人-1篇國(guó)際期刊論文(一作)1篇核心期刊論文在投。 +3 | 沒(méi)想好取什么名 2026-03-03 | 3/150 |
|
|
[考研] 化學(xué)工程求調(diào)劑 +10 | 化工人999 2026-03-04 | 10/500 |
|
|
[考研] 295求調(diào)劑 +4 | 小賽不吃香菜 2026-03-04 | 4/200 |
|
|
[考研] 武理材料工程302調(diào)劑 +3 | Doleres 2026-03-03 | 6/300 |
|
|
[考研] 0856材料工程,初試313調(diào)劑 +7 | 賣個(gè)關(guān)子吧 2026-03-03 | 7/350 |
|
|
[考研] 化工專碩調(diào)劑 +4 | 利好利好. 2026-03-03 | 7/350 |
|
|
[碩博家園] 2025屆雙非化工碩士畢業(yè),申博 +4 | 更多的是 2026-02-27 | 5/250 |
|
|
[考研] 化工270求調(diào)劑 +10 | 什么名字qwq 2026-03-02 | 10/500 |
|
|
[考研] 338求調(diào)劑 +5 | 18162027187 2026-03-02 | 6/300 |
|
|
[考研] 288求調(diào)劑 +3 | 少71.8 2026-03-02 | 5/250 |
|
|
[考研] 298求調(diào)劑 +10 | 人間唯你是清歡 2026-02-28 | 14/700 |
|
|
[考研] 求調(diào)劑 +11 | yunziaaaaa 2026-03-01 | 13/650 |
|
|
[考研] 295求調(diào)劑。一志愿報(bào)考鄭州大學(xué)化學(xué)工藝學(xué)碩,總分295分 +8 | yl1 2026-03-02 | 9/450 |
|
|
[考研] 求調(diào)劑 +7 | repeatt?t 2026-02-28 | 7/350 |
|
|
[考研] 085600材料工程一志愿中科大總分312求調(diào)劑 +9 | 吃宵夜1 2026-02-28 | 11/550 |
|
|
[考研] 化學(xué),材料,環(huán)境類求調(diào)劑 +7 | 考研版棒棒 2026-03-02 | 7/350 |
|
|
[考研] 284求調(diào)劑 +10 | 天下熯 2026-02-28 | 11/550 |
|
|
[考研] 279求調(diào)劑 +3 | dua1 2026-03-01 | 4/200 |
|
|
[考研] 291分工科求調(diào)劑 +9 | science餓餓 2026-03-01 | 10/500 |
|