3-oxabicyclo<4.3.0>-2,9-dioxononane | 76140-16-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异苯并呋喃
• 英文名称: 3-oxabicyclo<4.3.0>-2,9-dioxononane
• 英文别名: Perhydroisobenzofurane-1,7-dione；3,3a,4,5,6,7a-hexahydro-2-benzofuran-1,7-dione
• CAS: 76140-16-4
• 化学式: C₈H₁₀O₃
• 分子量: 154.166
• InChiKey: XRAZJLVRJJKZLO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-oxabicyclo<4.3.0>-2,9-dioxononane 以 水 为溶剂， 生成 7-Hydroxy-3a,4,5,6-tetrahydro-3H-isobenzofuran-1-one
  参考文献：
  名称：

  Solvent effects on keto-enol equilibria: tests of quantitative models

  摘要：

  DOI：

  10.1021/jo00208a014
• 作为产物：
  描述：

  6-氧杂二环[3.2.1]辛烷-7-酮,4-碘-,(1R,4R,5R)-rel- 在 吡啶 、 chromium(VI) oxide 、 lithium aluminium tetrahydride 、 sodium hydride 作用下， 以 四氢呋喃 、 丙酮 、 苯 为溶剂， 反应 30.03h， 生成 3-oxabicyclo<4.3.0>-2,9-dioxononane
  参考文献：
  名称：

  Goldsmith, David J.; John, T.K.; Middlesworth, Frank Van, Synthetic Communications, 1980, vol. 10, # 7, p. 551 - 558

  摘要：

  DOI：

文献信息

• Construction of AE ring system for the C19-diterpenoid alkaloids with a 5β-hydroxyl group
  作者：Zhan-Kun Yang、Qiao-Hong Chen、Feng-Peng Wang

  DOI：10.1016/j.tet.2011.04.062

  日期：2011.6

  An AE azabicyclic fragment, with a β-hydroxyl group at C-5 and a substituent at C-1, of the C19-diterpenoid alkaloids, was synthesized. The key reactions include an intramolecular Claisen-type condensation, double Mannich reaction, and stereoselective nucleophilic addition of carbonyl group with the assistance of steric effect of 1β-substituent.

  合成了C 19-二萜生物碱的在C-5具有β-羟基且在C-1具有取代基的AE氮杂双环片段。关键反应包括分子内克莱森型缩合，双重曼尼希反应和在1β取代基的空间效应的帮助下羰基的立体选择性亲核加成。
• A simple method for the efficient synthesis of unsaturated .beta.-dicarbonyl compounds
  作者：Dennis Liotta、Christopher Barnum、Robert Puleo、George Zima、Charlene Bayer、Hollis S. Kezar

  DOI：10.1021/jo00327a016

  日期：1981.7
• LIOTTA D.; BARNUM C.; PULEO R.; ZIMA G.; BAYER C.; KEZAR III H. S., J. ORG. CHEM., 1981, 46, NO 14, 2920-2923
  作者：LIOTTA D.、 BARNUM C.、 PULEO R.、 ZIMA G.、 BAYER C.、 KEZAR III H. S.

  DOI：——

  日期：——
• COMPOSITION AND METHOD FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED INTERNAL COMBUSTION ENGINES
  申请人：Chevron Oronite Company LLC

  公开号：US20200017789A1

  公开（公告）日：2020-01-16

  Disclosed herein is a fuel composition having (1) greater than 50 wt % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of a low-speed pre-ignition (LSPI)-reducing additive having one or more of an amidine, or a beta-amino alkanol having the structure R 1 , R 2 , R 3 , and R 4 are each independently selected from hydrogen, aromatic ring, and a C 1 -C 20 alkyl group and R 5 is hydrogen or an alcohol having the structure —(CH)R 6 —OH. R 6 is hydrogen, a C 1 -C 10 alkyl group, or a C 1 -C 10 alkenyl group, or a salt thereof.
• [EN] COMPOSITION AND METHOD FOR PREVENTING OR REDUCING LOW SPEED PRE-IGNITION IN SPARK-IGNITED INTERNAL COMBUSTION ENGINES<br/>[FR] COMPOSITION ET PROCÉDÉ POUR EMPÊCHER OU RÉDUIRE LE PRÉ-ALLUMAGE À FAIBLE VITESSE DANS DES MOTEURS À COMBUSTION INTERNE À ALLUMAGE PAR ÉTINCELLES
  申请人：CHEVRON ORONITE CO

  公开号：WO2019180685A1

  公开（公告）日：2019-09-26

  Fuel and lubricant compositions are provided that contain a primary low-speed pre-ignition (LSPI)-reducing additive comprising (i) an amino additive, (ii) an amine additive, (iii) a triazole additive, (iv) a benzamidinium additive, (v) a benzoxazole additive, or (vi) a N=C-X motif additive. Methods for preventing or reducing low speed pre-ignition events in spark-ignited engines using these compositions are also provided.