4-ethyl-2-methyl-4-butyrolactone | 2610-98-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: 4-ethyl-2-methyl-4-butyrolactone
• 英文别名: α-Methyl-γ-aethyl-γ-butyrolacton；2-methylhexan-4-olide；5-ethyl-3-methyl-dihydro-furan-2-one；5-Aethyl-3-methyl-dihydro-furan-2-on；2(3H)-Furanone, 5-ethyldihydro-3-methyl-；5-ethyl-3-methyloxolan-2-one
• CAS: 2610-98-2
• 化学式: C₇H₁₂O₂
• 分子量: 128.171
• InChiKey: YTALMPUNNICJOM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-ethyl-2-methyl-4-butyrolactone 在 一水合肼 作用下， 生成 4-hydroxy-2-methyl-hexanoic acid hydrazide
  参考文献：
  名称：

  KILIANI 将葡萄糖和果糖氰醇还原为相应的庚酸和内酯

  摘要：

  Kiliani 对 α-葡萄糖庚酸（D-葡萄糖-D-葡萄糖庚糖）内酯的经典还原导致正庚酸的产量小且可变，以及羟基-正庚酸的内酯含量不同。一种...

  DOI：

  10.1139/v53-033
• 作为产物：
  描述：

  4-hydroxy-2-methyl-hexanoic acid 以49%的产率得到
  参考文献：
  名称：

  FUJITA TSUTOMU; SUGA KYOICHI; WATANABE SHOJI; NAKAYAMA HISASHI; HOKYO MAS+, YUKAGAKU, YUKAGAKU, J. JAR. OIL CHEM. SOS, 1977, 26, HO 11, 720-726

  摘要：

  DOI：

文献信息

• PROCESS
  申请人：Wiebe Lars

  公开号：US20070249849A1

  公开（公告）日：2007-10-25

  The present invention relates to a process for preparing a lactone. The process comprises the steps of reacting an aldehyde with an organic halide in a carbon chain extension reaction to form an alcohol compound comprising a functional group capable of allowing for carbonylation of said alcohol compound, and then reacting said alcohol compound in a carbonylation reaction to form an hydroxycarboxylic acid; and cyclising the hydroxycarboxylic acid to produce the lactone.

  本发明涉及一种制备内酯的方法。该方法包括以下步骤：将醛与有机卤化物在碳链延伸反应中反应，形成含有功能基团的醇化合物，该功能基团能够允许醇化合物进行羰基化反应，然后在羰基化反应中反应所述醇化合物，以形成羟基羧酸；将羟基羧酸环化，以产生内酯。
• A cleaning implement comprising a modified open-cell foam
  申请人：The Procter and Gamble Company

  公开号：EP1808116A1

  公开（公告）日：2007-07-18

  The present invention relates to a cleaning implement comprising a modified open-cell foam with a density in the range from 5 to 1,000 kg/m3 and with an average pore diameter in the range from 1 µm to 1 mm, comprising an amount in the range from 1 to 2,500% by weight, based on the weight of the unmodified open-cell foam, of at least one water-insoluble polymer (b), selected from polystyrene, styrene copolymers, polybutadiene, butadiene copolymers, polyvinylesters, polyvinylethers, copolymers from (meth)acrylic acid with at least one (meth)acrylate, and polyurethanes, with the proviso that styrene-acrylonitrile-C1-C10-alkyl (meth)acrylate terpolymers, styrene-butadiene-n-butyl acrylate terpolymers, and styrene-maleic anhydride copolymers are excluded.

  本发明涉及一种清洁工具，包括一种改性开孔泡沫塑料，其密度在 5 至 1 000 千克/立方米之间，平均孔径在 1 微米至 1 毫米之间，含有至少一种水不溶性聚合物 (b)（以未改性开孔泡沫塑料的重量为基准，按重量计），其含量在 1 至 2 500% 之间、选自聚苯乙烯、苯乙烯共聚物、聚丁二烯、丁二烯共聚物、聚乙烯醇、聚乙烯醚、(甲基)丙烯酸与至少一种(甲基)丙烯酸酯的共聚物和聚氨酯，但不包括苯乙烯-丙烯腈-C1-C10-烷基(甲基)丙烯酸酯三元共聚物、苯乙烯-丁二烯-丙烯酸正丁酯三元共聚物和苯乙烯-马来酸酐共聚物。
• Modified open-cell foams and process for their production
  申请人：BASF Aktiengesellschaft

  公开号：EP1808455A1

  公开（公告）日：2007-07-18

  Modified open-cell foams with a density in the range from 5 to 1,000 kg/m3 and with an average pore diameter in the range from 1 µm to 1 mm, comprising an amount in the range from 1 to 2,500% by weight, based on the weight of the unmodified open-cell foam, of at least one water-insoluble polymer (b), selected from polystyrene, styrene copolymers, polybutadiene, butadiene copolymers, polyvinylesters, polyvinylethers, copolymers from (meth)acrylic acid with at least one (meth)acrylate, and polyurethanes with the proviso that styrene-acrylonitrile-C1-C10-alkyl (meth)acrylate terpolymers, styrene-butadiene-n-butyl acrylate terpolymers, and styrene-maleic anhydride copolymers are excluded

  密度在 5 至 1 000 千克/立方米范围内、平均孔径在 1 微米至 1 毫米范围内的改性开孔泡沫塑料，包含至少一种水不溶性聚合物 (b)，其含量（以未改性开孔泡沫塑料重量为基准）在 1 至 2 500% 重量百分比范围内，该聚合物选自聚苯乙烯、苯乙烯共聚物、聚丁二烯、丁二烯共聚物、聚乙烯醇、聚乙烯醚、（甲基）丙烯酸与至少一种（甲基）丙烯酸酯的共聚物，以及聚氨酯、聚丁二烯、丁二烯共聚物、聚乙烯醇、聚乙烯醚、(甲基)丙烯酸与至少一种 (甲基)丙烯酸酯的共聚物和聚氨酯，但不包括苯乙烯-丙烯腈-C1-C10-烷基 (甲基)丙烯酸酯三元共聚物、苯乙烯-丁二烯-丙烯酸正丁酯三元共聚物和苯乙烯-马来酸酐共聚物。
• Multilayer composition for packaging
  申请人：BASF SE

  公开号：US10252497B2

  公开（公告）日：2019-04-09

  A multilayer composition for packaging comprising a first polymer film, a second film, at least one print layer between the films and a 1 K isocyanate prepolymer adhesive layer between the at least one print layer and one of the films, where the print layer contains a hyperbranched polyester binder containing functional groups selected from the group consisting of —OH, —COOH and —COOR, where R is methyl, ethyl, vinyl, isopropyl, n-propyl, n-butyl, isobutyl, sec-butyl or tert-butyl provides packaging laminates with excellent adhesion. The hyperbranched polyester is for example a polymer of trimethyolpropane and hexahydrophthalic anhydride and optionally a cycloaliphatic diol.

  一种用于包装的多层组合物，包括第一层聚合物薄膜、第二层薄膜、位于两层薄膜之间的至少一层印刷层以及位于至少一层印刷层和其中一层薄膜之间的 1 K 异氰酸酯预聚物粘合剂层、其中印刷层含有超支化聚酯粘合剂，该粘合剂含有从-OH、-COOH 和-COOR（其中 R 为甲基、乙基、乙烯基、异丙基、正丙基、正丁基、异丁基、仲丁基或叔丁基）组成的组中选出的官能团。例如，超支化聚酯是三羟甲基丙烷和六氢邻苯二甲酸酐以及环脂族二元醇的聚合物。
• Blaise; Luttringer, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1905, vol. 140, p. 792
  作者：Blaise、Luttringer

  DOI：——

  日期：——