acetic 2-methyl-2-phenylpropionic anhydride

• 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: acetic 2-methyl-2-phenylpropionic anhydride
• 英文别名: Acetyl 2-methyl-2-phenylpropanoate
• 化学式: C₁₂H₁₄O₃
• 分子量: 206.241
• InChiKey: KJYXRYAPXCEUSZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-acetoxy-4,4-dimethyl-3,5,5-triphenyl-1,2-dioxolane 以 氘代苯 为溶剂， 生成 二苯甲酮 、 2-甲基-1,2-二苯基-1-丙酮 、 乙酸苯甲酸酐 、 acetic 2-methyl-2-phenylpropionic anhydride
  参考文献：
  名称：

  Synthesis and Thermolysis of Ketal Derivatives of 3-Hydroxy-1,2-dioxolanes

  摘要：

  3-[(Trimethylsilyl)oxy]-3,4,4,5-tetramethyl-5-phenyl-1,2-dioxolane (2), 3-methoxy-3,4,4,5-tetra-methyl-5-phenyl-1,2-dioxolane (3), and 3-acetoxy-3,4,4,5-tetramethyl-5-phenyl-1 (4) were synthesized from the corresponding 3-hydroxy-1,2-dioxolane (1a) under basic conditions. 3-Acetoxy-4,4-dimethyl-3,5,5-triphenyl-1,2-dioxolane (5) was also synthesized via this approach. Under acidic conditions, 3-hydroxy-1,2-dioxolane la underwent quantitative decomposition to phenol and 3,3-dimethyl-2,4-pentanedione. This competing degradation was dependent on the nature of the substituents at position-5. Methyl groups at position-5 slowed the degradative rearrangement whereas phenyl groups favored it. 3-Methoxy- and 3-(allyloxy)-4,4,5,5-tetramethyl-3-pheny dioxolanes (6, 7) were synthesized under acidic conditions from the appropriate 1,2-dioxolane precursors and the corresponding alcohols. At 60 degrees C, derivatized 1,2-dioxolanes 2-7 were found to be more stable than the corresponding 3-hydroxy-1, 2-dioxolanes. The first order rate constants for the thermolysis of 1,2-dioxolanes 2-7 were determined. Product studies showed that thermolysis of 2-5 yielded pairs of ketones and derivatized carboxylic acids. In addition to R-group migration products, an acetoxy migration product was observed for the thermolysis of 4. Thermolysis of 6 at 60 degrees C in benzene yielded methyl benzoate and pinacolone, quantitatively. Thermolysis of 7 yielded products analogous to those for 6. No evidence for internal trapping of radicals by the carbon-carbon double bond of the allyloxy group in 7 was found. The thermolyis appeared to proceed with peroxy bond homolysis as the rate-determining step. Subsequent beta-scissions of the intermediate 1,5-oxygen diradical with interesting rearrangements that show a high preference for alkyl vs phenyl migration account for the observed product distributions. The results suggest that the beta-scission/ rearrangement mechanism may not be concerted but rather stepwise to yield 1,3-diradical and carbonyl fragments.

  DOI：

  10.1021/jo00101a030

文献信息

• Portioned detergent composition
  申请人：Pegelow Ulrich

  公开号：US20050119150A1

  公开（公告）日：2005-06-02

  A portioned liquid detergent composition in a heat-sealed, water-soluble or water-dispersible container, the liquid detergent composition being an aqueous matrix and solid particles dispersed therein, wherein the aqueous matrix has a water content above 6% by weight, and at least 70% by weight of the dispersed solid particles have particle sizes below 200 μm.

  一种装在热封、可溶于水或可分散于水的容器中的液体洗涤剂组成物，该液体洗涤剂组成物是水基质和固体颗粒分散在其中，其中水基质的含水量超过重量6％，且至少70％重量的分散固体颗粒粒径小于200μm。
• Dosed washing and cleaning agent composition
  申请人：——

  公开号：US20040259751A1

  公开（公告）日：2004-12-23

  The present invention relates to a dosed liquid washing and cleaning agent composition, comprising a non-aqueous matrix and solid particles dispersed therein, in a bag made from a water-soluble film. Whereby at least 70 wt. % of the particles of the washing and cleaning agent composition comprise particle sizes below 200 &mgr;m. By means of the selection of said particle size range for the suspended particles, normally occurring production problems of leakage of the bag seams and the resulting problems may be avoided.

  本发明涉及一种袋装液体洗涤和清洁剂组合物，包括一种非水基质和分散在其中的固体颗粒，袋子由水溶性薄膜制成。其中，至少70重量％的洗涤和清洁剂组合物的颗粒粒径小于200μm。通过选择悬浮颗粒的该颗粒尺寸范围，通常发生的袋子接缝泄漏和由此产生的问题可以避免。
• COSMETIC
  申请人：Kao Corporation

  公开号：EP3015100A1

  公开（公告）日：2016-05-04

  Provided is a cosmetic composition having excellent storage stability and excellent moisturizing effect as well as excellent tanning speed and evenness of tanning. The cosmetic composition comprising the following components (A) to (E): (A) a copolymer or crosspolymer which comprises, as a constituent unit, at least one selected from the group consisting of an acrylic acid salt and hydroxyethyl acrylate, and 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof; polyacrylamide; or a mixture thereof; (B) a polyglycerol fatty acid ester; (C) 10 to 35 mass% of a polyhydric alcohol; (D) 0.1 to 20 mass% of a liquid oil; and (E) a tanning agent, and having a viscosity of from 2,000 to 20,000 mPa·s.

  本发明提供了一种化妆品组合物，该组合物具有优异的储存稳定性和出色的保湿效果，以及极佳的鞣制速度和鞣制均匀度。 该化妆品组合物由以下成分（A）至（E）组成： (A) 共聚物或交联聚合物，其组成单元包括至少一种选自丙烯酸盐和丙烯酸羟 乙酯、2-丙烯酰胺基-2-甲基丙磺酸或其盐、聚丙烯酰胺或其混合物； (B) 聚甘油脂肪酸酯； (C) 10 至 35 质量％的多元醇； (D) 0.1 至 20 质量%的液态油；及 (E) 鞣剂、 粘度为 2,000 至 20,000 mPa-s。
• SOLUBILIZING AGENTS AND AQUEOUS COMPOSITIONS COMPRISING THEM
  申请人：Daito Kasei Industries France

  公开号：EP3078365A1

  公开（公告）日：2016-10-12

  The present invention concerns a composition comprising: a) at least one gemini surfactant; b) at least one alkylpolyglucoside; and c) at least one polyglycerol fatty acid(s) ester, wherein the fatty acid comprises from 4 to 36 carbon atoms. The present invention also concerns an aqueous composition comprising said composition.

  本发明涉及一种组合物，其中包括 a) 至少一种双子表面活性剂； b) 至少一种烷基聚葡萄糖苷；和 c) 至少一种聚甘油脂肪酸酯，其中脂肪酸包含 4 至 36 个碳原子。 本发明还涉及一种包含上述组合物的水性组合物。
• Pro-fragrance composition
  申请人：AQDOT LIMITED

  公开号：US10695277B2

  公开（公告）日：2020-06-30

  A pro-fragrance composition includes a cucurbituril in complex with a fragrance molecule and use of the compositions in counteracting malodour. The cucurbituril is present as a mixture, wherein the mixture includes at least two different cucurbiturils selected from CB[5], CB[6], CB[7] and CB[8]. The complexed fragrance molecule is released when the composition is exposed to a stimulus. Also provides methods for the preparation of pro-fragrance complexes of cucurbiturils and fragrance molecules.

  一种促香组合物包括葫芦素与香味分子的复合物，该组合物用于对抗恶臭。葫芦素以混合物的形式存在，其中混合物包括至少两种选自 CB[5]、CB[6]、CB[7] 和 CB[8] 的不同葫芦素。当组合物受到刺激时，络合的香味分子就会释放出来。还提供了葫芦素和香味分子的原香味复合物的制备方法。