N-(Dichloromethylene)-N-Methylmethanaminium Chloride 二氯亚甲基二甲基氯化铵
CAS 33842-02-3 MFCD00011870
化学结构图
SMILES: [Cl-].C[N+](C)=C(Cl)Cl
化学属性
| Mol. Formula | C3H6Cl3N |
|---|---|
| Mol. Weight | 162.44 |
| Melting Point | 183-187 °C (dec.)(lit.) |
| TSCA | No |
别名和识别编码
| Chemical Name | N-(Dichloromethylene)-N-Methylmethanaminium Chloride |
|---|---|
| Synonym | (二氯亚甲基)二甲基氯化铵 Phosgeniminium chloride Vilsmeier 试剂 (dichloromethylene)dimethylammonium chloride Methanaminium, N-(dichloromethylene)-N-methyl-, chloride Phosgen-immoniumchlorid "N,N-Dimethylphosgeniminium chloride 二氯亚甲基二甲基氯化铵 Dichlormethylen-dimethylimmoniumchlorid ""Phosgeniminium chloride"" Viehe's salt Dichloromethylene dimethylammonium chloride (二氯亚甲基)二甲基氯化铵 Phosgeniminium chloride Phosgeneiminium chloride Phosgene iminium chloride N,N-dimethyl phosgeniminium chloride N,N-dimethyldichloromethyleneiminium chloride N-dichloromethylene-N,N-dimethylammonium chloride Methanaminium, N-(dichloromethylene) N methyl-, chloride N,N-dimethyl-dichloromethylene-iminium chloride N,N-Dimethylphosgeniminium chloride Dichlormethylendimethylimmoniumchlorid Phosgenimmoniumchlorid Viehe's Salt" Dichloromethylene dimethyliminium chloride Vilsmeier 试剂 |
| CAS Number | 33842-02-3 |
| PubChem Substance ID | 87568080 |
| EC Number | 251-695-4 |
| Beilstein Registry Number | 4157987 |
| MDL Number | MFCD00011870 |
| Reaxys-RN | 4157987 |
| Merck Number | 9977 |
| Chemical Name Translation | 二氯亚甲基二甲基氯化铵 |
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分类
- Building Blocks, Chemical Synthesis, Imines/Amidines, Nitrogen Compounds, Organic Building Blocks
- {uni_hamburg} no charge; 2fragments; ionic
- {SNA} Building Blocks, Chemical Synthesis, Imines/Amidines, Nitrogen Compounds, Organic Building Blocks
相关文献及参考
- Reaction with a phenol yields, after hydrolysis, the diaryl carbonate: Angew. Chem. Int. Ed., 10, 573 (1971). For reactions with active methylene compounds, see: Angew. Chem. Int. Ed., 10, 574, 575 (1971). 2-Hydroxy acetophenones lead to 2-dimethylamino chromones: J. Org. Chem., 57, 6502 (1992); 61, 3218 (1996):
- See also (Chloromethylene)dimethylammonium chloride, B24172.
- Short: III/20a
- Dehydrates aldoximes and aldehyde phenylhydrazones to nitriles: Synthesis, 563 (1974), 201 (1985), respectively. N, N-dialkylureas are dehydrated to carbodiimides: Tetrahedron Lett., 37, 7047 (1996).
- Converts THP protected alcohols directly to alkyl chlorides in good yield: Tetrahedron Lett., 38, 3517 (1997).
- For review of reactions, including use as Mannich or Vilsmeier intermediates, see: Angew. Chem. Int. Ed., 12, 806 (1973).
- Effects cyanation of electron-rich aromatics and heterocycles: Tetrahedron Lett., 27, 1939 (1986).
安全信息
GHS Symbol
- H290 May be corrosive to metals 可能腐蚀金属。
- H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
- H335 May cause respiratory irritation 可能导致呼吸道刺激
- P234 Keep only in original container. 只保留在原来的容器中。
- P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/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。
- 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+P330+P331+P310
- P303+P361+P353
- P303+P361+P353+P310+P363
- P304+P340
- P304+P340+P310
- P305+P351+P338+P310
- P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
- P390 Absorb spillage to prevent material damage. 吸收溢出物，防止重大损害。
- P405 Store locked up. 上锁保管。
- P406 Store in corrosive resistant/… container with a resistant inner liner. 存放在耐腐蚀/具有耐性的内衬容器。
- P501 Dispose of contents/container to..… 处理内容物/容器.....
- 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；
- S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护；
- S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时，立即求医（可能时出示标签）；
- R14 Reacts violently with water 遇水会猛烈反应
- R34 Causes burns 会导致灼伤
- R37 Irritating to respiratory system 刺激呼吸道
