4-(a,a-dimethylbenzylperoxy)-4-methyl-2-pentanone | 26394-03-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-(a,a-dimethylbenzylperoxy)-4-methyl-2-pentanone
• 英文别名: 2-methyl-2-cumylperoxy-4-pentanone；2-Methyl-2-(cumylperoxy)-4-oxopentan；4-methyl-4-(2-phenylpropan-2-ylperoxy)pentan-2-one
• CAS: 26394-03-6
• 化学式: C₁₅H₂₂O₃
• 分子量: 250.338
• InChiKey: KBCMHRZMEUNRQM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  二丙酮醇 、 过氧化氢异丙苯 在 硫酸 作用下， 反应 3.0h， 生成 4-(a,a-dimethylbenzylperoxy)-4-methyl-2-pentanone
  参考文献：
  名称：

  Akimova,G.S.; Grinblat,M.P., Journal of Organic Chemistry USSR (English Translation), 1971, vol. 7, p. 2369 - 2372

  摘要：

  DOI：

文献信息

• Compounds by addition of hydroperoxides to .alpha.-.beta.-unsaturated
  申请人：Pennwalt Corporation

  公开号：US04257985A1

  公开（公告）日：1981-03-24

  Compounds containing at least one keto group and at least one peroxy group, each peroxy oxygen being joined to a tertiary carbon atom. Examples: 2-Methyl-2-(t-butylperoxy)-4-pentanone. 2,6-Dimethyl-2,6-bis(t-butylperoxy)-4-heptanone. 3,5,5-Trimethyl-3-(t-butylperoxy)cyclohexanone. The compounds are prepared by the strong acid catalyzed addition of a tertiary hydroperoxide to an .alpha.,.beta.-unsaturated ketone. Illustration: Mesityl oxide and pinanyl hydroperoxide, in slight excess, were reacted at 0.degree. C. in the presence of 77% sulfuric acid; the reaction mix was stirred for 16 hours at 25.degree. C. Product 2-methyl-2-pinanylperoxy-4-pentanone was recovered.

  含有至少一个酮基和至少一个过氧基的化合物，其中每个过氧氧原子连接到三级碳原子。例如：2-甲基-2-(叔丁基过氧基)-4-戊酮。2,6-二甲基-2,6-双(叔丁基过氧基)-4-庚酮。3,5,5-三甲基-3-(叔丁基过氧基)环己酮。这些化合物是通过强酸催化的三级过氧化物加到α，β-不饱和酮中制备的。例如：在77%的硫酸存在下，将二甲基亚砜和蒎烷过氧化氢在0°C下稍微过量反应；反应混合物在25°C下搅拌16小时。得到2-甲基-2-蒎基过氧基-4-戊酮产物。
• Compounds by addition of hydroperoxides to .alpha., .beta.-unsaturated
  申请人：Pennwalt Corporation

  公开号：US04289914A1

  公开（公告）日：1981-09-15

  Compounds containing at least one keto group and at least one peroxy group, each peroxy oxygen being joined to a tertiary carbon atom. Examples: 2-Methyl-2-(t-butylperoxy)-4-pentanone. 2,6-Dimethyl-2,6-bis(t-butylperoxy)-4-heptanone. 3,5,5-Trimethyl-3-(t-butylperoxy)cyclohexanone. The compounds are prepared by the strong acid catalyzed addition of a tertiary hydroperoxide to an .alpha.,.beta.-unsaturated ketone. Illustration: Mesityl oxide and pinanyl hydroperoxide, in slight excess, were reacted at 0.degree. C. in the presence of 77% sulfuric acid; the reaction mix was stirred for 16 hours at 25.degree. C. Product 2-methyl-2-pinanyl-peroxy-4-pentanone was recovered.

  含有至少一个酮基和至少一个过氧基的化合物，每个过氧氧原子都连接到三级碳原子。例如：2-甲基-2-(叔丁基过氧基)-4-戊酮，2,6-二甲基-2,6-双(叔丁基过氧基)-4-庚酮，3,5,5-三甲基-3-(叔丁基过氧基)环己酮。这些化合物是通过强酸催化的三级过氧化氢加成到α，β-不饱和酮中制备的。举例说明：在77％的硫酸存在下，将苯并羟过氧化物和蒎烯羟过氧化物稍微过量地在0℃下反应；反应混合物在25℃下搅拌16小时。产物2-甲基-2-蒎基过氧基-4-戊酮被回收。
• Compositions and methods for crosslinking polymers in the presence of atmospheric oxygen
  申请人：Arkema Inc.

  公开号：US10316154B2

  公开（公告）日：2019-06-11

  Embodiments of organic peroxide formulations provide significant improvements in surface tackiness (often including tack-free surfaces) when curing elastomers in the presence of oxygen. The peroxide formulations may include, for example, one or more compounds selected from sulfur-containing compounds, organophosphite compounds, HALS (Hindered Amine Light Stabilizer) compounds, aliphatic allyl urethane compounds, and blends comprising nitroxides (e.g., 4-hydroxy-TEMPO) and quinones (e.g., mono-tert-butylhydroquinone).

  在有氧气存在的情况下固化弹性体时，有机过氧化物配方的实施方案可显著改善表面粘性（通常包括无粘性表面）。例如，过氧化物配方可包括一种或多种选自含硫化合物、有机亚磷酸盐化合物、HALS（受阻胺光稳定剂）化合物、脂肪族烯丙基聚氨酯化合物以及由亚硝基化合物（例如 4-羟基-TEMPO）和醌类化合物（例如单叔丁基对苯二酚）组成的混合物。
• Liquid and meltable solid grades of scorch protected peroxides
  申请人：Arkema Inc.

  公开号：US10344142B2

  公开（公告）日：2019-07-09

  Embodiments of organic peroxide formulations provide longer scorch time protection and require fewer additives. The peroxide formulations may include, for example, at least one organic peroxide, at least one nitroxide-containing compound (e.g., 4-hydroxy-TEMPO), and at least one quinone-containing compound (e.g., mono-tert-butylhydroquinone). Embodiments of the present invention relate to organic peroxide compositions comprising scorch retarders. Embodiments of the invention also relate to crosslinkable elastomer compositions, processes for curing the elastomers, and products made by such processes.

  有机过氧化物制剂的实施方案可提供更长的焦烧保护时间，所需的添加剂也更少。例如，过氧化物制剂可包括至少一种有机过氧化物、至少一种含亚硝基化合物（如 4-羟基-TEMPO）和至少一种含醌化合物（如单对叔丁基对苯二酚）。本发明的实施例涉及含有焦烧延缓剂的有机过氧化物组合物。本发明的实施例还涉及可交联弹性体组合物、固化弹性体的工艺以及由这些工艺制成的产品。
• Foam composition with improved properties and applications thereof
  申请人：Braskem S.A.

  公开号：US11015035B2

  公开（公告）日：2021-05-25

  Foamed compositions that include: one or more foamable polymers; one or more ionomeric additives; and wherein the foam composition exhibits shrinkage as determined at 70° C.*1 h according to the PFI method between 0.1 and 3.5%. Methods may include preparing a polymer composition by combining one or more foamable polymers and one or more ionomeric additives in a mixer to produce the polymer composition; and foaming the polymer composition to generate a polymer foam exhibiting shrinkage as determined at 70° C.*1 h according to the PFI method of between 0.1 and 3.5%.

  发泡组合物，包括：一种或多种可发泡聚合物；一种或多种离聚添加剂；其中泡沫组合物在 70° C *1 h 时根据 PFI 方法测定的收缩率在 0.1 至 3.5%之间。方法可包括通过在混合器中混合一种或多种可发泡聚合物和一种或多种离聚添加剂以制备聚合物组合物；以及将聚合物组合物发泡以产生聚合物泡沫，根据 PFI 方法在 70° C.*1 h 时测定的收缩率在 0.1 至 3.5%之间。