A novel method for palladium - catalyzed cyclotrimerization of alkynes in supercritical carbon dioxide ( scco2 ) has been developed 摘要研究了以超临界二氧化碳为反应介质溴化钯催化炔烃环三聚反应的新方法。
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Abstract : this article reviews recent progress in nucleophilic reactions of the - carbon in vinylidene ruthenium complexes . the nucleophiles include alkene , alkyne , alcohol , acid , amine , water , etc 文摘:综述了近几年钌亚乙烯基络合物中间体-碳的亲核反应。亲核试剂包括烯烃、炔烃、醇、酸、胺、水等。
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Based on characteristics and connectivity of the groups in molecules , the group contribution method and topological method was combined together , a new method was developed which can be used to calculate the density of alkyne from molecular structure 摘要根据分子中基团的特性和连接性，将基团贡献法和拓扑方法结合在一起，发展了一种计算炔烃密度的新方法基团键贡献法，该方法具有基团贡献法适用范围广和拓扑方法计算结果准确可靠的特点。
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Eighteen compounds in the oil were identified by g c / ms . they are : seven ketone compounds : 2 - undecanone , 6 , 10 - dimethy , 1 - cyclohexanol - l - butanone , 2 , 5 - hexanedione , 2 ( 4h ) - benzofuranone , 5 , 6 , 7 , 7 , a - tetrahydro - 4 , 4 , 7a - trimethyl , 3 - buten - 2 - one , 4 - ( 2 , 6 , 6 - trimethyl - 1 - cyclohex en - 1 - yl ) - , ( e ) , 6 - dodecanone , 3 - buten - 2 - one , 4 - ( 2 , 6 , 6 - trimethyl - 7 - oxabicycl o4 . 1 . 0hept - l - yl ) ; three alcoholic compounds : a - terpineol . benzyl alcoho 1 , phytol ; two alkyl and acyl amine components : undecane , tetradecane and hydrazinecarboxamide , n , n - diphenyl - , acetamidobenzene ; one ester , a idehyde , alkyne and acid : butanoic acid : 2 - propenyl ester , 1 - octadecyne , 1 - octadecyne , palmitic acid 三甲基一7一氧双环p ， l ， 0庚烷基什丁烯酮上；醇3种：苯甲醇、 a松油醇、 3 ， 7 ， 11 ， 15十六烯2醇1 ；烷2种：十一烷、十四烷；酚胺2种：姘基甲酚h苯胺、乙酞苯胺；酯、醛、炔、和酸备是1种：丁酸烯丙酯、十八碳醛、十八炔、十六碳酸。
