3-(4-methylphenyl)-5-isopropylidene-1,3-oxazolidine-2,4-dione | 182762-52-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑烷类
• 英文名称: 3-(4-methylphenyl)-5-isopropylidene-1,3-oxazolidine-2,4-dione
• 英文别名: 3-(4-methylphenyl)-5-propan-2-ylidene-1,3-oxazolidine-2,4-dione
• CAS: 182762-52-3
• 化学式: C₁₃H₁₃NO₃
• 分子量: 231.251
• InChiKey: OMTVUKSMLZMEAV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-羟基-3-甲基-3-丁烯酸乙酯 、 N-(对甲苯)氨基甲酸乙酯 在 盐酸 、 三正丁胺 、 四丁基氯化铵 作用下， 以 甲苯 为溶剂， 生成 3-(4-methylphenyl)-5-isopropylidene-1,3-oxazolidine-2,4-dione
  参考文献：
  名称：

  Process for the preparation of 3-(substituted

  摘要：

  本发明提供了一种工业过程，用于高效制备具有强大除草活性的3-(取代苯基)-5-异丙基亚甲基-1,3-噁唑烷-2,4-二酮衍生物，而不使用光气等。本发明涉及一种制备3-(取代苯基)-5-烷基亚甲基-1,3-噁唑烷-2,4-二酮衍生物的过程，该衍生物由通式(III)表示，其中包括将通式(I)表示的N-(取代苯基)氨基甲酸酯与通式(II)表示的2-羟基-3-烯酸酯或通式(IV)表示的3-烷氧基-2-羟基烷酸酯反应：##STR1##（其中Ar是取代苯基，R^1是碳数为1至6的烷基，R^2和R^3分别是氢原子或碳数为1至12的烷基，R^4和R^5分别是碳数为1至6的烷基）。

  公开号：

  US06090946A1

文献信息

• PROCESS FOR THE PREPARATION OF 3-(SUBSTITUTED PHENYL)-5-ALKYLIDENE-1,3-OXAZOLIDINE-2,4-DIONE DERIVATIVES
  申请人：SAGAMI CHEMICAL RESEARCH CENTER

  公开号：EP0812834A1

  公开（公告）日：1997-12-17

  The present invention provides an industrial process for efficiently preparing a 3-(substituted phenyl)-5-isopropylidene-1,3-oxazolidine-2,4-dione derivative having a potent herbicidal activity without using phosgene or the like. The present invention relates to a process for preparing a 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,4-dione derivative represented by general formula (III), which comprises reaction of an N-(substituted phenyl)carbamate represented by general formula (I) with a 2-hydroxy-3-alkenoate represented by general formula (II) or with a 3-alkoxy-2-hydroxyalkanoate represented by general formula (IV): (wherein Ar is a substituted phenyl group, R1 is an alkyl group having a carbon number of from 1 to 6, R2 and R3 are independently hydrogen atoms or alkyl groups having carbon numbers of from 1 to 12, and R4 and R5 are independently alkyl groups having carbon numbers of from 1 to 6).

  本发明提供了一种不使用光气等有效制备具有强除草活性的 3-(取代苯基)-5-异亚丙基-1,3-恶唑烷-2,4-二酮衍生物的工业工艺。本发明涉及一种制备通式(III)代表的 3-(取代苯基)-5-亚烷基-1,3-恶唑烷-2,4-二酮衍生物的工艺，该工艺包括通式(I)代表的 N-(取代苯基)氨基甲酸酯与通式(II)代表的 2-羟基-3-烯酸酯或通式(IV)代表的 3-烷氧基-2-羟基烷酸酯反应： (其中 Ar 为取代的苯基，R1 为碳原子数为 1-6 的烷基，R2 和 R3 独立地为氢原子或碳原子数为 1-12 的烷基，R4 和 R5 独立地为碳原子数为 1-6 的烷基）。
• US6090946A
  申请人：——

  公开号：US6090946A

  公开（公告）日：2000-07-18
• Process for the preparation of 3-(substituted
  申请人：Sagami Chemical Research Center

  公开号：US06090946A1

  公开（公告）日：2000-07-18

  The present invention provides an industrial process for efficiently preparing a 3-(substituted phenyl)-5-isopropylidene-1,3-oxazolidine-2,4-dione derivative having a potent herbicidal activity without using phosgene or the like. The present invention relates to a process for preparing a 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,4-dione derivative represented by general formula (III), which comprises reaction of an N-(substituted phenyl)carbamate represented by general formula (I) with a 2-hydroxy-3-alkenoate represented by-general formula (II) or with a 3-alkoxy-2-hydroxyalkanoate represented by general formula (IV): ##STR1## (wherein Ar is a substituted phenyl group, R.sup.1 is an alkyl group having a carbon number of from 1 to 6, R.sup.2 and R.sup.3 are independently hydrogen atoms or alkyl groups having carbon numbers of from 1 to 12, and R.sup.4 and R.sup.5 are independently alkyl groups having carbon numbers of from 1 to 6).

  本发明提供了一种工业过程，用于高效制备具有强大除草活性的3-(取代苯基)-5-异丙基亚甲基-1,3-噁唑烷-2,4-二酮衍生物，而不使用光气等。本发明涉及一种制备3-(取代苯基)-5-烷基亚甲基-1,3-噁唑烷-2,4-二酮衍生物的过程，该衍生物由通式(III)表示，其中包括将通式(I)表示的N-(取代苯基)氨基甲酸酯与通式(II)表示的2-羟基-3-烯酸酯或通式(IV)表示的3-烷氧基-2-羟基烷酸酯反应：##STR1##（其中Ar是取代苯基，R^1是碳数为1至6的烷基，R^2和R^3分别是氢原子或碳数为1至12的烷基，R^4和R^5分别是碳数为1至6的烷基）。