丙酮基膦酸二甲酯是一种重要的有机磷化合物,展现出优异的性能,并广泛应用于农业、医药和工业等领域。
制备方法将干燥洁净的500 mL盘管加热至135℃。取氯丙酮(标准大气压下的沸点为117~119℃)1000 g(0.7 eq., 10.81 mol),置于打料瓶A中,加入4000 g甲苯稀释;同时将亚磷酸三甲酯(标准大气压下的沸点为112℃)1878 g(1.0 eq., 15.13 mol)置于打料瓶B中,加入3122 g甲苯稀释。待盘管温度稳定后开始打料:泵A(化合物6的甲苯溶液)流速为12.5 g/min;泵B(亚磷酸三甲酯)流速也为12.5 g/min。反应停留时间为20 min,压力控制在0.5~2.0 Mpa之间。
出料口直接连接薄膜蒸发装置,控制压力为4~10×10^2 Pa,温度设定在60~70℃。经过这些步骤后,最终得到丙酮基膦酸二甲酯(沸点85~88℃,真空度666 Pa),实际产量为1230 g,收率为88%。
核磁共振氢谱1H NMR (400 MHz, CDCl₃): δ 3.78 (d, 6H, J=11.0 Hz), 3.07 (d, 2H, J=22.8 Hz), 2.29 (s, 3H).
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
二甲基(2-羟丙基)膦酸酯 | dimethyl (2-hydroxypropyl)phosphonate | 54731-75-8 | C5H13O4P | 168.13 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | Acetonyl-phosphonsaeure-monomethylester | 52011-39-9 | C4H9O4P | 152.087 |
(2-丁酮)膦酸二甲酯 | dimethyl (2-oxobutyl)phosphonate | 41162-15-6 | C6H13O4P | 180.141 |
P-丙基-膦酸二甲酯 | dimethyl propylphosphonate | 18755-43-6 | C5H13O3P | 152.13 |
(2-氧代己基)膦酸二甲酯 | dimethyl 2-oxohexanephosphonate | 61728-15-2 | C8H17O4P | 208.194 |
—— | (1-methyl-2-oxopropyl)phosphonic acid dimethyl ester | 62269-22-1 | C6H13O4P | 180.141 |
—— | dimethyl 4-methyl-2-oxo-pentyl-1-phosphonate | 41162-17-8 | C8H17O4P | 208.194 |
(2-氧代庚基)膦酸二甲酯 | dimethyl 2-oxoheptylphosphonate | 36969-89-8 | C9H19O4P | 222.221 |
—— | dimethyl (2-oxo-5-hexenyl)phosphonate | 41162-18-9 | C8H15O4P | 206.178 |
—— | 1-Dimethoxyphosphorylpropane-1,2-dione | 1423705-46-7 | C5H9O5P | 180.097 |
—— | dimethyl (1-chloro-2-oxopropyl)phosphonate | 1352401-31-0 | C5H10ClO4P | 200.559 |
—— | dimethyl (2-oxohept-5-yn-1-yl)phosphonate | 69691-21-0 | C9H15O4P | 218.189 |
—— | Ohira-Bestmann Reagent | —— | C5H10NO4P | 179.112 |
—— | acetonylphosphonic acid | 6913-02-6 | C3H7O4P | 138.06 |
—— | (4-Cyclopropyl-2-oxo-butyl)phosphonic Acid Dimethyl Ester | 724705-91-3 | C9H17O4P | 220.205 |
—— | (5R,7S)-1-dimethoxyphosphoryl-5,7-dimethylundecan-2-one | 934808-31-8 | C15H31O4P | 306.382 |
—— | dimethyl (3-cyclohexyl-2-oxopropyl)phosphonate | 53273-28-2 | C11H21O4P | 248.259 |
—— | dimethyl (3-oxobutyl)phosphonate | 20335-89-1 | C6H13O4P | 180.141 |
二甲基(2-羟丙基)膦酸酯 | dimethyl (2-hydroxypropyl)phosphonate | 54731-75-8 | C5H13O4P | 168.13 |
—— | dimethyl (R)-(2-hydroxypropyl)phosphonate | —— | C5H13O4P | 168.13 |
—— | (S)-dimethyl 2-hydroxypropylphosphonate | —— | C5H13O4P | 168.13 |
—— | dimethyl 3-methyl-2-oxoheptylphosphonate | 41162-20-3 | C10H21O4P | 236.248 |