其结构中由于羰基具有强烈的吸电子效应,因而它是一种非质子的极性溶剂,具有高沸点、高闪点、低熔点,在过滤、蒸馏、溶剂萃取等工艺操作中使用方便;毒性极低,对人体危害微不足道,也减少了对环境的污染;由于它具有极强的溶解性,能溶解有机物、无机物、树脂、聚合物等,并对各种试剂具有活化性质,还能与其它高沸点溶剂混溶;具有极好的稳定性,在热的强碱和酸性条件下都很稳定,还具有耐水性及对光、氧的稳定性。因此DMPU应用到有机化学反应中能促进反应物溶解,加快反应速度,提高反应收率,还能替代毒性较大的溶剂。 应用: 使用1,3-二甲基-3,4,5,6-四氢化-2(1H)-嘧啶酮(DMPU): 用作氨的N-烷基化反应 醛糖的氧烷基化反应以及合成聚(芳基醚)的通用溶剂。 作为尿素溶剂,通过芳肼盐酸盐与1,3-二酮合成1-芳香基-3,4,5-取代吡唑。 作为不对称氰化酰胺的添加剂。 DMPU/HF可作为亲核氟化剂在普林斯氟化反应中合成取代4-氟代四氢吡喃和4-氟代六氢吡啶。 多功能溶剂,用于手性伯胺的 N-烷基化反应,醛醣的 O-烷基化反应,以及聚(芳醚)的合成。 Versatile solvent employed in N-alkylation of chiral, primary amines, O-alkylation of aldoses, and in the synthesis of poly(aryl ethers). Application: 1,3-Dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone (DMPU) can be used: • As a versatile solvent in N-alkylation of amines • O-alkylation of aldoses, and in the synthesis of poly(aryl ethers). • As urea solvent in the synthesis of 1-aryl-3,4,5-substituted pyrazoles by cyclocondensation of arylhydrazine hydrochlorides with 1,3-diketones. • As an additive in asymmetric cyanoamidation. DMPU/HF can be used as a nucleophilic fluorinating agent in fluoro-Prins reaction for the synthesis of substituted 4-fluorotetrahydropyrans and 4-fluoropiperidines. Versatile solvent employed in N-alkylation of chiral, primary amines, O-alkylation of aldoses, and in the synthesis of poly(aryl ethers).
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N,N'-Dimethylpropyleneurea(DMPU)
Dangerous GoodsCAS number:7226-23-5 molecular formula:C6H12N2O
overview
compound introduction
Specs
| Chinese alias | 1,3-二甲基丙撑脲 | 1,3-二甲基-3,4,5,6-四氢-2(1H)-嘧啶酮 | N,N'-二甲基丙烯基脲 | 1,3-甲基-3,4,5,6-四氢-2(1H)-嘧啶酮 | ||
| English alias | DMPU | A837469 | HY-Y0100 | SCHEMBL82580 | AMY12538 | DTXSID3074575 | InChI=1/C6H12N2O/c1-7-4-3-5-8(2)6(7)9/h3-5H2,1-2H | 1,3-dimethyl-3,4,5,6-tetrahydro- -2-(1H)-pyrimidone | 1,3-di- methyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone | 1,3-dimethyl -3,4,5,6-te | ||
| CAS number | 7226-23-5 | molecular formula | C6H12N2O |
| molecular weight | 128.17 g/mol | Exact mass | ≥99% |
| PSA | 23.600 Ų | logp | -0.100 |
numbering system
No numbering system information yet
physicochemical properties
No physical and chemical property information yet
Safety information
pictogram:
GHS08 , GHS05 , GHS07
Signal word:
Danger
Hazard Statement:
H302: 吞食有害 H318: 造成严重的眼睛损伤 H361f: 怀疑破坏生育力
Statement of Preventive Measures:
P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P405: 密闭存放 P501: 将内容物/容器处理到。。。 P264: 处理后要彻底洗手。 P270: 使用本产品时,请勿进食、饮水或吸烟。 P330: 漱口 P203: 使用前,获取、阅读并遵守所有安全说明。 P264+P265: 处理后彻底洗手[和…]。不要触摸眼睛。 P301+P317: 如果被吞咽:请寻求医疗帮助。 P305+P354+P338: 如果进入眼睛:立即用水冲洗几分钟。取下隐形眼镜(如果有的话),并且操作简单。继续冲洗。 P
WGK Germany:
2
Personal protective equipment:
Eyeshields,Faceshields,full-face respirator (US),Gloves,multi-purpose combination respirator cartridge (US),type ABEK (EN14387) respirator filter
RTECS:
UW7582500
Production methods and uses
No production method and use information yet
Related
upstream information
No upstream information yet
downstream information
No downstream information yet
MSDS
Found 1 shareMSDS
7226-23-5 | 1,3-Dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone.pdf





