Maximum quantity allowed is 999
请选择数量
CAS RN: 110-87-2 | 產品號碼: D0555
3,4-Dihydro-2H-pyran
×
![]()
×
* 以上價格已含運費關稅等但一些需要海運以及乾冰運輸的產品除外,詳情請與
當地經銷商
洽詢。
* TCI會時常優化儲存條件,儲存溫度請以在線目錄為準，敬請留意。
產品規格
| Appearance | Colorless to Light yellow clear liquid |
| Purity(GC) | min. 97.0 % |
性質
| 沸點 | 86 °C |
| flp | -6 °C |
| 比重 | 0.93 |
| 折射率 | 1.44 |
GHS
| 圖形表示 |
|
| 信號詞 | Danger |
| 危險性說明 | H315 : Causes skin irritation. H319 : Causes serious eye irritation. H225 : Highly flammable liquid and vapor. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P240 : Ground/bond container and receiving equipment. P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking. P233 : Keep container tightly closed. P243 : Take precautionary measures against static discharge. P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment. P242 : Use only non-sparking tools. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P403 + P235 : Store in a well-ventilated place. Keep cool. |
相關法規
運輸資料
| UN編號 | UN2376 |
| 類別 | 3 |
| 包裝類別 | II |
| HS編碼* | 2932.99-000 |
Application
THP Protection of Alcohols
Typical Procedure :THP protection of (R)-(+)-glycidol
(R = (R)-(+)-glycidyl) : Pyridinium p-toluenesulfonate (PPTS) (1.00 g, 4.05 mmol) and 3,4-dihydro-2H-pyran (11.3 mL, 121.5 mmol) are added to a stirred solution of (R)-(+)-glycidol (6.00 g, 80.99 mmol) in dichloromethane (80 mL) at 0 °C under argon atmosphere. After 6 h, aqueous NaHCO3 solution (60 mL) is added and the layers are separated. The aqueous layer is extracted with dichloromethane (3x50 mL). Combined organic layer is dried over MgSO4, filtered, and concentrated in vacuo. The crude mixture is purified by column chromatography (EtOAc:hexane = 1:5) to give the desired product (9.22 g, 72%).
(R = (R)-(+)-glycidyl) : Pyridinium p-toluenesulfonate (PPTS) (1.00 g, 4.05 mmol) and 3,4-dihydro-2H-pyran (11.3 mL, 121.5 mmol) are added to a stirred solution of (R)-(+)-glycidol (6.00 g, 80.99 mmol) in dichloromethane (80 mL) at 0 °C under argon atmosphere. After 6 h, aqueous NaHCO3 solution (60 mL) is added and the layers are separated. The aqueous layer is extracted with dichloromethane (3x50 mL). Combined organic layer is dried over MgSO4, filtered, and concentrated in vacuo. The crude mixture is purified by column chromatography (EtOAc:hexane = 1:5) to give the desired product (9.22 g, 72%).
References
- A Facile Synthesis of (S)-Felodipine
考研文獻
產品文件 （部分產品的分析圖譜無法提供，敬請諒解。）
SDS
請選擇語言。
請求的SDS不可用。
如需更多幫助，請聯繫我們 。
產品規格
檢驗報告(CoA)及其他文檔
請輸入批號
輸入的批號不正確
示例 CoA
可下載CoA示例。注：該示例可能非最新批次的CoA。
目前沒有該產品的 CoA 示例。
分析圖譜
請輸入批號
輸入的批號不正確
很抱歉，您搜索的分析圖譜無法提供。