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中文摘要：
采用气相色谱-质谱联用（GC-MS）技术，对120oC时Pd／C-H2SO4协同催化松节油直接异构-歧化反应产物进行分析鉴定，共分离出45个峰，初步鉴定出37个化合物，其中主要产物为单环单萜烃对伞花烃和双环单萜烃蒈烷；主要副产物为莰烯、葑醇、芋烯、莰醇、顺式-1-甲基4．（1-甲乙基）-环已烯醇、蒈烯、异龙脑、对孟烷-8-醇及2，6-二甲基-2-辛烯等；其相对质量分数分别为：51．42％、27．62％、4．65％、2．29％、2．28％、1．25％、0．46％、0．38％、0．37％、0．35％及0．33％。分析结果表明，在松节油直接催化异构-歧化反应过程中，其主要成分双环单萜蒎烯的异构及分子间氢转移歧化反应为主反应，并伴随深度开环异构、水合重排等副反应，倍半萜几乎不发生反应，蒎烯转化率为99．14％，对伞花烃选择性为57．46％。
英文摘要：
The reaction products of turpentine synergetic catalytic isomerization- disproportionation at 120 ℃ over Pd/C-H2SO4 catalyst were analyzed and identified by chromatography and gas chromatography/mass spec- trometry-data system（GC-MS）. 45 peaks were separated and 37 compounds were tentatively identified. The main products were p-cymene（ monocyelic monoterpenoid） , carane （double ring monoterpene） and the main by-products were camphene, fenchol, limonene, borneol, cis-l-methyl-4-（ 1-methylethyl）-cyclohexanol, carene, isoborneol, p-menthan-8-ol, 2,6-dimethyl-3-octene, which their relative contents were 51.42%, 27.62%, 4.65%, 2.29%, 2.28% , 1.25% , 0.46%, 0.38% , 0.37%, 0.35% , 0.33% , respectively. The analysis results showed that the isomerization and intermolecular hydrogen transfer disproportionation of bicyclic terpene pinene （the main composition of turpentine ） were main reaction. Simultaneously, some accompanying side reactions such as further ring-opening isomerization, aquated rearrangement reaction were occurred. And very few isomerization of sesquiterpene have been observed. 99.14% conversion of pinene and 57.46% selectivity for p-cymene were obtained.
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