Methyltriphenylphosphonium Bromide 甲基三苯基溴化膦
CAS 1779-49-3 MFCD00011804
化学结构图
SMILES: C[P+](c1ccccc1)(c1ccccc1)c1ccccc1.[Br-]
化学属性
| Mol. Formula | C19H18BrP |
|---|---|
| Mol. Weight | 357.22 |
| Melting Point | 230-234°C |
| TSCA | T |
| Density | 1.3386 |
| Solubility | 400 G/L (25 ºC) |
| Stability | 易吸潮 |
| Flash Point | >240°C |
| Appearance | 白色晶体。熔点234-235℃。 |
| Danger-Level | 乙类 |
别名和识别编码
| Chemical Name | Methyltriphenylphosphonium Bromide |
|---|---|
| CAS Number | 1779-49-3 |
| Alfabeta Name | METHYLTRIPHENYLPHOSPHONIUMBROMIDE |
| MDL Number | MFCD00011804 |
| Beilstein Registry Number | 3599467 |
| PubChem Substance ID | 87572778 |
| EC Number | 217-218-9 |
| Reaxys-RN | 3599467 |
| Synonym | Methyltriphenylphosphonium bromide {LY} Methyltriphenylphosphonium bromide {} {LY} Methyltriphenylphosphonium bromide {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {} {} { {} {} {} {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Methyltriphenylphosphonium bromide {} {} {} {} {} {} {} {} {} {} {} {} { |
| Chemical Name Translation | 甲基三苯基溴化膦 |
| InChIKey | LSEFCHWGJNHZNT-UHFFFAOYSA-M |
| LabNetwork Molecule ID | LN00116842 |
| InChI | InChI=1S/C19H18P.BrH/c1-20(17-11-5-2-6-12-17,18-13-7-3-8-14-18)19-15-9-4-10-16-19;/h2-16H,1H3;1H/q+1;/p-1 |
| Canonical SMILES | C[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Br-] |
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分类
- {SNA} C-C Bond Formation, Chemical Synthesis, Olefination, Synthetic Reagents, Wittig Reagents
产品应用
- 用于有机合成。
相关文献及参考
- Precursor of Wittig ylide for methylenation of carbonyl compounds (see Appendix 1). See, e.g.: Org. Synth. Coll., 5, 751 (1973). A simplified procedure using K2CO3 in triglyme has been reported: Synth. Commun., 22, 513 (1992).
- Beilstein: 16,IV,981
- Where the ylide is insufficiently reactive, a further proton can be removed by s-BuLi or t-BuLi, and the resulting lithio ylide reacted with hindered ketones such as fenchone: J. Am. Chem. Soc., 104, 4724 (1982). Reaction of the lithio ylide with an epoxide generates a new ylide, with which Wittig olefination of aldehydes gives trans-homoallylic alcohols (same ref.):
- Where the ylide is insufficiently reactive, a further proton can be removed by s-BuLi or t-BuLi, and the resulting lithio ylide reacted with hindered ketones such as fenchone: J. Am. Chem. Soc., 104, 4724 (1982). Reaction of the lithio ylide with an epoxide generates a new ylide, with which Wittig olefination of aldehydes gives trans-homoallylic alcohols (same ref.):
- Precursor of Wittig ylide for methylenation of carbonyl compounds (see Appendix 1). See, e.g.: Org. Synth. Coll., 5, 751 (1973). A simplified procedure using K2CO3 in triglyme has been reported: Synth. Commun., 22, 513 (1992).
安全信息
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
- P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
- P270 Do not eat, drink or smoke when using this product. 使用本产品时不要吃东西，喝水或吸烟。
- P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
- P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
- P301+P312+P330
- P302+P352+P312+P362+P364
- P304+P340+P312
- P305+P351+P338
- P305+P351+P338+P337+P313
- P332+P313
- P501 Dispose of contents/container to..… 处理内容物/容器.....
GHS Symbol
- H302 Harmful if swallowed 吞食有害
- H302+H312+H332
- H312 Harmful in contact with skin 皮肤接触有害
- H332 Harmful if inhaled 吸入有害
- S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
- S36/37 Wear suitable protective clothing and gloves 穿戴适当的防护服和手套；
- S57 Use appropriate containment to avoid environmental contamination 使用适当容器避免环境污染；
- R20/21/22 Harmful by inhalation, in contact with skin and if swallowed 吸入、皮肤接触和不慎吞咽有害
- R22 Harmful if swallowed 吞咽有害
- R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
- R51/53
其他信息
- Alfa Aesar:甲基三苯基溴化磷,98+% Methyltriphenylphosphonium bromide, 98+%(1779-49-3)
- 甲基三苯基溴化价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 L0016703 甲基三苯基溴化鏻, 98+% 500g 1940元 2011/04/16 M0779 甲基三苯溴化磷 Methyltriphenylphosphonium Bromide 25G 243元 2011/04/16 M0779 甲基三苯溴化磷 Methyltriphenylphosphonium Bromide 500G 2040元
- Acros Organics:甲基三苯基溴化膦 Methyltriphenylphosphonium bromide, 98%(1779-49-3)
- 海关编码:29310095
- 用途一:用于有机合成。
- TSCA:T
- 上游原料:三苯基膦 --> 溴甲烷
- MOL 文件:1779-49-3.mol
- TCI Shanghai:甲基三苯溴化磷 Methyltriphenylphosphonium Bromide,>;98.0%(LC)(T)(1779-49-3)
- 方法一:将55g三苯基膦溶于45ml干燥苯，冷却，再加入28g预先冷却的溴甲烷，密闭后在室温放置2d。然后将500ml热苯与反应混合物混匀，滤集白色固体，干燥，得70g甲基三苯基溴化磷。收率99%。
- 水中溶解度:400 g/L (25°C)，甲醇溶解度:950 g/L (20°C)，溶于脂肪醇和氯仿，实际上不溶于芳香烃和丙酮。
- 敏感性:Hygroscopic
- 图谱信息:甲基三苯基溴化(1779-49-3)核磁图( 1 HNMR) 甲基三苯基溴化(1779-49-3)Raman光谱 甲基三苯基溴化(1779-49-3)质谱(MS) 甲基三苯基溴化(1779-49-3)核磁图( 13 CNMR) 甲基三苯基溴化(1779-49-3)红外图谱(IR2) 甲基三苯基溴化(1779-49-3)红外图谱(IR1)
- Sigma Aldrich:1779-49-3(sigmaaldrich)
- MSDS 信息:Methyltriphenylphosphonium bromide(1779-49-3).msds
- 检测方法:NMR,T
