1-methyltriacetylmethane | 25491-41-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-methyltriacetylmethane
• 英文别名: 3-acetyl-3-methyl-pentane-2,4-dione；1,1,1-triacetylethane；2,4-Pentanedione, 3-acetyl-3-methyl-；3-acetyl-3-methylpentane-2,4-dione
• CAS: 25491-41-2
• 化学式: C₈H₁₂O₃
• 分子量: 156.181
• InChiKey: SFWVCXDETAFGMA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  51.2
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  trichlorotris(tetrahydrofuran)chromium(III) 、 1-methyltriacetylmethane 以 四氢呋喃 、 二氯甲烷 为溶剂， 以60%的产率得到[CrCl3((1-methyltriacetylmethane)]
  参考文献：
  名称：

  Synthesis, characterisation and catalytic behaviour of a novel class of chromium(iii) and vanadium(iii) complexes containing bi- and tri-dentate imidazole chelating ligands: a comparative study

  摘要：

  The syntheses and characterisation of tri- and bi-dentate coordinated chromium(III) and vanadium(III) complexes of the general composition [MCl3(N<^>D<^>N)], [MCl3(N<^>N)](2) {M = Cr, (N<^>D<^>N) = (mim)(3)COCH3 2a [mim = 1-methylimidazolyl], (mim)(2)CHCH2PPh2 2b, (mim)(2) CHCH2C(O)But 2c, (tBupim)(3)P 2d [tBupim = 1-isopropyl-4-tert-butylimidazolyl], (N<^>N) = (mim)(2)CH2 3e, (mim)(2)CH2PPh2 3f, (mim)(2)CO 3g, (Bzmim)(2)CO 3h [Bzmim = 1-methybenzimidazolyl], (tBupim)(2)CO 3i, (mim)(2)C=NPh 3j; M = V: (N<^>D<^>N) = (mim)(3)COCH3 5a; (N<^>N) = (mim)(2)CO 5g}, [CrCl3(mim)(3)] 4k, and [CrCl3(MeTAM)](6) (MeTAM = 1-methyltriacetylmethane) is described. Crystallisation of 3g from CH3CN/Et2O gave the mononuclear complex [CrCl3{(mim)(2)CO}(CH3CN)] 3g'. The molecular structure of 3g' shows the chromium atom is quasi-octahedral, six-coordinate, the three coordinated chlorine atoms disposed mer in the coordination sphere. The electronic spectra of the chromium complexes exhibit d-d transitions typical of a pseudo-octahedral coordinated d(3) ion, falling into the region nu(1) 4A(2g) --> T-4(2g) 600-700 nm and nu(2) (4)A(2g) --> T-4(1g) (F) 430-470 nm, and 10Dq values between 14 400 and 16 700 cm(-1). In the presence of MMAO the complexes give active catalyst systems for the conversion of ethylene into 1-alkenes or polymers, with activities and selectivities depending on the electronic and steric factors of the ligand system and the metal centre, respectively.

  DOI：

  10.1039/b207248c

文献信息

• O-Acylation using organothallium compounds
  申请人：——

  公开号：US03947488A1

  公开（公告）日：1976-03-30

  Thallous salts of .beta.-dicarbonyl compounds, prepared by reaction of the .beta.-dicarbonyl compounds with a thallous alkoxide, are treated with alkyl halides to give C-alkyl products in high yield, with acyl halides at room temperature to give C-acyl products, and with acyl halides at low temperatures to give O-acyl products. Thallous phenolates are esterified with acyl or aroyl halides. Anhydrides are also prepared, as are biaryls and bi-sec-alkyls. N-Heterocyclics, including purines and pyrimidines, are N-alkylated. Lactams are O-acylated or N-alkylated.

  通过将.beta.-二羰基化合物与铊烷氧化物反应制备出铊盐，然后用烷基卤代物处理，可以高产得到C-烷基产物；室温下用酰卤代物处理可以得到C-酰基产物；低温下用酰卤代物处理可以得到O-酰基产物。铊酚盐可以与酰卤代物或芳酰卤代物酯化。还可以制备酐、联苯和双二级烷基。包括嘌呤和嘧啶在内的N-杂环化合物可以进行N-烷基化。内酰胺可以进行O-酰基化或N-烷基化。
• Photoinitiator, novel compound, and photocurable composition
  申请人：Lachowicz Artur

  公开号：US20050256218A1

  公开（公告）日：2005-11-17

  A photoinitiator is provided which exhibits excellent photosensitivity, yields colorless products, and is usable in thick layer UV curable coating. A novel chemical compound is also provided which is usable for the photoinitator. Photocurable composition is also provided which has these properties. The photoinitiator consists essentially of a compound having a molecular weight of 1000 or less, and having a chemical structure represented by the following formula (1), wherein R 3 and R 4 independently denote a specific alkyl group, and R 1 and R 2 independently denote an electron attracting group or a specific alkyl group, and weight percentage of a chemical structure element represented by the following formula (2), which is expressed in formula (1) based on the total molecular weight of the compound, is 17% to 54% by mass.

  提供了一种光引发剂，其具有优异的光敏度，产物无色，并可用于厚层紫外线固化涂层。还提供了一种新的化合物，可用于制备光引发剂。同时提供了具有这些特性的光固化组合物。该光引发剂基本上由分子量小于或等于1000的化合物组成，其化学结构由以下公式（1）表示，其中R3和R4独立地表示特定的烷基，R1和R2独立地表示电子吸引基团或特定的烷基，根据化合物的总分子量，以下公式（2）所表示的化学结构元素的重量百分比在17%至54%之间。
• Process for O-acylating thallus salts of 2-pyridone
  申请人：——

  公开号：US04020073A1

  公开（公告）日：1977-04-26

  Thallous salts of .beta.-dicarbonyl compounds, prepared by reaction of the .beta.-dicarbonyl compounds with a thallous alkoxide, are treated with alkyl halides to give C-alkyl products in high yield, with acyl halides at room temperature to give C-acyl products, and with acyl halides at low temperatures to give O-acyl products. Thallous phenolates are esterified with acyl or aroyl halides. Anhydrides are also prepared, as are biaryls and bi-sec-alkyls. N-heterocyclics, including purines and pyrimidines, are N-alkylated. Lactams are O-acylated or N-alkylated.

  通过将β-二羰基化合物与铊烷氧化物反应制备出铊盐，然后使用烷基卤代物处理铊盐可以高产得到C-烷基产物，在室温下使用酰卤代物可以得到C-酰基产物，在低温下使用酰卤代物可以得到O-酰基产物。铊酚盐可以与酰卤代物或芳酰卤代物酯化。可以制备无水酸酐、联苯和双次烷基。可以对包括嘌呤和嘧啶在内的N-杂环化合物进行N-烷基化。内酰胺可以进行O-酰化或N-烷基化。
• PHOTOINITIATOR, NOVEL COMPOUND, AND PHOTOCURABLE COMPOSITION
  申请人：DAINIPPON INK AND CHEMICALS, INC.

  公开号：EP1490412A1

  公开（公告）日：2004-12-29
• PROCESS FOR THE CATALYTIC HALOGENATION OF A DIOL
  申请人：Akzo Nobel N.V.

  公开号：EP2408730A1

  公开（公告）日：2012-01-25