蒈烯

结论：金佛手挥发油的主要成分是柠檬烯与蒈烯。

Conclusion : The majority chemical composition in Citrus Bergamot volatile oils were Limonene and Carene .

4-乙酰基-2-蒈烯的合成

Synthesis of 4 acetyl 2 carene

水蒸气蒸馏法提出成分中还含有25.12%的（+）-2-蒈烯，而SFE法未检测到该成分。

In addition to D-limonene , the steam distillation also identified 25.12 % ( + ) - 2-carene , but it was not obtained by SFE method .

云南3-蒈烯资源的调查研究

Investigation on Oleoresin Resource of 3-Carene in Yunnan Province

用两步法分馏中国木松节油和硫酸盐松节油回收到3-蒈烯含量达56～72%的几种馏分。

Fractions containing 56 ~ 72 % 3-carene were recovered by two-stage fractional distillation of Chinese wood and sulfate turpentines .

在氯化锌催化剂的催化下，用乙酸酐进行乙酰化生成的主产品为乙酰蒈烯与4-乙酰-2-蒈烯的混合物。乙酰化的最佳条件测定为：反应温度：70℃；

Acety-lation with acetic anhydride using zinc chloride as catalyst produced a mixture of acetylated carenes with 4-acetyl-2-carene as the main product .

本文报道蒈烯在不同溶剂中光敏氧化反应产物的组成和分布及其与溶剂及敏化剂性质的关系。

This paper reported that the product distribution of photosensitized oxygenation of carene by aromatic cyanide are related to solvent and sensitizers .

本研究成果为拓展3-蒈烯的化学利用途径、提高该类型松节油的精细利用价值奠定了理论和应用基础。

The results would enrich the chemical utilization of 3-carene and establish the theoretical and practical foundation for the fine and high-valuable development of turpentine .

德国W.Lange在研究不同地区来源的欧洲赤松松脂的化学组成时，曾按△~3－蒈烯含量不同，将它们分成中欧和南欧地区二类。

P. sylvestris was classified into two groups-central Europe and south Europe based on amounts of △￣ 3-carene in oleoresins of trees from different latitudes by W. Lange .

在3个生理状态下，侧柏的不同部位都检测到有α-蒎烯、β-水芹烯和3-蒈烯释放，且这3种组分的相对百分含量也较高。

In three physiological states ,α - Pinene , and β - Phellandrene , 3-Carene are detected in different parts of P. orientalis , and their relative content are higher .

剪草后，过度放牧草地异戊二烯、α蒎烯、β蒎烯、柠檬烯、蒈烯等的排放通量均远大于适度放牧草地的相应值。

The emission fluxes of isoprene ,α - pinene ,β - pinene , carene and limonene from heavy grazed plot are higher than moderated grazed plot after these grasses are cut .

本文研究俄罗斯境内的欧洲赤松松脂的组成，发现它与同纬度的中欧地区欧洲赤松松脂一样，含有较高数量的△~3－蒈烯。

This paper studied the chemical compositions of oleoresin from P. sylvestris grown in Russia . It contains high amounts of △￣ 3-carene like that in central Europe at the same latitude .

本文研究了木松节油、硫酸盐松节油的组成。除α-蒎烯、β-蒎烯外，这两种松节油还分别含有10.73%和8.01%的3-蒈烯。

The analysis of components of wood turpentine and sulfate turpentine shows that , besides a - 、β - pinene , there are 10.73 % and 8.01 % 3-carene sulfate turpentine in wood respectively .

通过二次真空精馏，得到含α-蒎烯96.3%，β-蒎烯28.2%，3-蒈烯45.0%的三种主馏份，釜液中双戊烯含量较高。

By vaccum rectification , the fractions of α - pine with 96 . 3 % , β - pinene with 28 . 2 % and 3-carene with 45 . 0 % were obtained .

室内测定的结果表明油松松脂内的单萜组分有α-蒎烯、莰烯、β-蒎烯、香叶烯和柠檬烯，另外还含有少量3-蒈烯和α-萜品烯，但并不普遍；

The analysis of resin contents showed that main monoterpenes were α - pinene , camphene , β - pinene , myrcene and limonene and some times there were 3-carene and α - terpine .

其中含有α-蒎烯、Δ3-蒈烯、γ-松油烯、乙酸龙脑酯、乙酸萜品酯及长叶烯等，含量最多的成分是β-蒎烯（36.536%）。

The principal constituents of the volatile oil were β pinene ( 36 536 % ),α pinene ,Δ 3 carene ,γ terpinene , bornyl acetate , terpinyl acetate , longifolene etc. The total content of the above 33 compounds is 99 79 % of the volatile oil .