2,3-dimethyl-4-ethylacetophenone | 66309-77-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3-dimethyl-4-ethylacetophenone
• 英文别名: 1-(4-Ethyl-2,3-dimethylphenyl)ethanone
• CAS: 66309-77-1
• 化学式: C₁₂H₁₆O
• 分子量: 176.258
• InChiKey: URISTFXVYUJKFZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  4-ethyl-5,6-dimethyl-2(H)-pyranone 、 3-丁炔-2-酮 反应 36.0h， 以45%的产率得到3,4-dimethyl-5-ethylacetophenone
  参考文献：
  名称：

  Regioselectivity in the diels-alder reactions of α-pyrones with alkynes

  摘要：

  DOI：

  10.1016/s0040-4020(01)90334-5

文献信息

• Tobacco with an increased level of natural tar diluents
  申请人：Lipowicz Peter John

  公开号：US10271573B2

  公开（公告）日：2019-04-30

  Disclosed are methods and compositions for preparing tobacco such that components of tobacco tar are reduced, while maintaining the total tar delivery of a composition or device containing tobacco treated with one or more natural tar diluents. Artificial tar diluents can also be used in combination with one more natural tar diluents. The tobacco compositions have decreased levels of tobacco specific nitrosamines and/or other components found in tar when the composition is smoked, while maintaining the total tar delivery of the smoking article, such as a cigarette, when using a tar diluent at a level sufficient to achieve desired taste qualities.

  所公开的是用于制备烟草的方法和组合物，这些方法和组合物可以减少烟草焦油成分，同时保持含有用一种或多种天然焦油稀释剂处理过的烟草的组合物或装置的总焦油输送量。人工焦油稀释剂也可以与一种或多种天然焦油稀释剂结合使用。当使用焦油稀释剂的水平足以达到所需的口感质量时，烟草组合物在吸烟时烟草特有的亚硝胺和/或焦油中的其他成分的水平会降低，同时保持吸烟物品（如香烟）的总焦油量。
• Material for inclusion in a smoking article
  申请人：British American Tobacco (Investments) Limited

  公开号：US10765141B2

  公开（公告）日：2020-09-08

  The invention relates to a smokeable sheet material for inclusion in a smoking article (1), the sheet material comprising greater than 39.5% by weight acacia gum.

  本发明涉及一种用于烟具（1）中的可发烟片状材料，这种片状材料由重量百分比大于 39.5% 的刺槐胶组成。
• MATERIAL FOR INCLUSION IN A SMOKING ARTICLE
  申请人：British American Tobacco (Investments) Limited

  公开号：EP3019040A1

  公开（公告）日：2016-05-18
• Material for Inclusion in a Smoking Article
  申请人：BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED

  公开号：US20160219926A1

  公开（公告）日：2016-08-04

  A smokeable material for inclusion in a smoking article, the material comprising particles or fragments comprising acacia gum, wherein the particles or fragments do not comprise a diluent, flavourant or aerosol generating material; and substantially comprise or consist of acacia gum.
• [EN] TOBACCO WITH AN INCREASED LEVEL OF NATURAL TAR DILUTENTS<br/>[FR] TABAC PRESENTANT UNE TENEUR ACCRUE EN DILUANTS DE GOUDRON NATURELS
  申请人：PHILIP MORRIS PROD

  公开号：WO2007012980A1

  公开（公告）日：2007-02-01

  [EN] Disclosed are methods and compositions for preparing tobacco such that components of tobacco tar are reduced, while maintaining the total tar delivery of a composition or device containing tobacco treated with one or more natural tar diluents. Artificial tar diluents can also be used in combination with one more natural tar diluents . The tobacco compositions have decreased levels of tobacco specific nitrosamines and/or other components found in tar when the composition is smoked, while maintaining the total tar delivery of the smoking article, such as a cigarette, when using a tar diluent at a level sufficient to achieve desired taste qualities.
  [FR] L'invention concerne des méthodes et des compositions pour préparer du tabac, de sorte que les composants de goudron de tabac sont réduits, tout en maintenant la teneur totale de goudron ingérée d'une composition ou d'un dispositif contenant du tabac traité par au moins un diluant de goudron naturel. Des diluants de goudron artificiels peuvent également être utilisés conjointement à au moins un diluant de goudron naturel. Les compositions de tabac de l'invention présentent des niveaux réduits de nitrosamines spécifiques au tabac et/ou d'autres composants contenus dans le goudron, lorsque la composition est fumée, tout en maintenant la teneur totale de goudron ingérée de l'article à fumer, notamment une cigarette, lors de l'utilisation d'un diluant de goudron à un niveau suffisant pour atteindre des qualités de goût voulues.