7-Methyl-cadalen | 6897-81-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 7-Methyl-cadalen
• 英文别名: 1,6,7-Trimethyl-4-propan-2-ylnaphthalene
• CAS: 6897-81-0
• 化学式: C₁₆H₂₀
• 分子量: 212.335
• InChiKey: VRJNIMHKBPXIJG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  7-Methyl-cadalen 、 alkaline earth salt of/the/ methylsulfuric acid 生成 均苯四甲酸
  参考文献：
  名称：

  El Niño-Southern Oscillation and Rainfall Variability in Central and Southern Sudan

  摘要：

  In this study, the effects of the El Nino-Southern Oscillation (ENSO) on the rainfall variability in the central (Savannah) and southern (Equatorial) regions of Sudan are examined. The annual rainfall data from 12 rainfall stations for 49 years are used in this examination. The results of the study show that the areal annual regionally averaged rainfall values in the two regions have decreased markedly since the early 1960s, with co-existence between the driest years and the warm ENSO events. The correlation between the annual regional rainfall values and the ENSO events is found to be relatively higher for the Savannah region than for the Equatorial region. Two regional ENSO-rainfall prediction models are developed, one for each region. These models use the ENSO sea surface temperature. The results of the models test show that both models can significantly improve the predictability of the annual rainfall values, which is essential for the planning and the management of water resources in Sudan.

  DOI：

  10.1080/02508060108686902
• 作为产物：
  描述：

  2,3,8-Trimethyl-5-isopropyl-decahydro-2-naphthol 在 palladium on activated charcoal 氢气 作用下， 生成 7-Methyl-cadalen
  参考文献：
  名称：

  萜类化合物—第三十六章：香根草油中一种新的倍半萜烯醇苦丁酚的结构

  摘要：

  从北部印度香根草油（Vetiveria zizaniodes，Linn）中分离出的一种新的结晶型倍半萜烯醇Khusinol在降解实验及其转化为（-）-γ-cadinene的基础上，具有由结构XX表示的绝对构型在温和的条件下。它属于cadinenes的反对立群。γ 1 -Cadinene（XXI）从马拉巴香茅油分离也已经显示到属于同一对映组。

  DOI：

  10.1016/0040-4020(63)80026-5

文献信息

• Studies in sesquiterpenes—XXIII
  作者：B.A. Nagasampagi、Sukh Dev、C. Rai、K.L. Murthy

  DOI：10.1016/s0040-4020(01)82269-9

  日期：1966.1

  In connection with the characterization of methylcadalenes by modern spectroscopic methods, all five, theoretically possible, methylcadalenes have been prepared by new and simpler procedures. UV, IR and PMR spectra of these compounds are reported and discussed. TLC of isomeric naphthalenes over silica gel impregnated with trinitrobenzene is described.

  结合现代光谱方法对甲基卡达隆的表征，所有五种理论上可行的甲基卡达隆均已通过新的和更简单的方法制备。这些化合物的UV，IR和PMR光谱已报道和讨论。描述了用三硝基苯浸渍的硅胶上的异构萘的TLC。
• Terpenoids—XXXVIII
  作者：C.C. Kartha、P.S. Kalsi、A.M. Shaligram、K.K. Chakravarti、S.C. Bhattacharyya

  DOI：10.1016/0040-4020(63)80027-7

  日期：1963.1

  A new sesquiterpene hydrocarbon, (−)γ2-cadinene, has been isolated from Indian vetiver oil. On the basis of formation of (+) cadinene dihydrochloride and other reactions, its structure and absolute configuration are represented by the formula I. It belongs to the unusual antipodal group of cadinenes.

  一种新的倍半萜烃类，（ - ）γ 2 -cadinene，已经从印度香根草油分离。在形成（+）盐酸二氢卡丁烯的反应和其他反应的基础上，其结构和绝对构型由式I表示。它属于异常的cadinenes对映体基团。
• Sesquiterpenoids. Part V. The stereochemistry of acorone: X-ray analysis of acorone p-bromophenylsulphonylhydrazone
  作者：C. E. McEachan、A. T. McPhail、G. A. Sim

  DOI：10.1039/j39660000579

  日期：——

  Crystals of acorone p-bromophenylsulphonylhydrazone are monoclinic, space group P21(C22), with two molecules of C21H29N2BrSO3 in a unit cell of dimensions a= 11·45, b= 9·95, c= 11·03 Å, β= 109° 15′. An X-ray crystal-structure determination has established its stereochemistry. The cyclohexane ring adopts the chair conformation with the methyl group at C(8) axial. The atomic parameters were refined by

  Acorone对溴苯磺酰hydr的晶体是单斜晶，空间群P 2 1（C 2 2），在一个单元格中，两个分子C 21 H 29 N 2 BrSO 3的尺寸为a = 11·45，b = 9·95，c = 11·03Å，β= 109°15′。的X射线晶体结构确定已经建立了立体化学。环己烷环采用C（8）轴上带有甲基的椅子构象。原子参数通过傅里叶和最小二乘方法进行了精炼，最终差异R，超过1453个观察到的反射率为14·5％。
• Sorm; Herout, Collection of Czechoslovak Chemical Communications, 1949, vol. 14, p. 723,734
  作者：Sorm、Herout

  DOI：——

  日期：——
• The Structure of Cadinene
  作者：William P. Campbell、Milton D. Soffer

  DOI：10.1021/ja01254a050

  日期：1942.2