The BF3/n-BuOH complexes were investigated as active species in catalyzing n-decene polymerization reaction.The structures of BF3/n-BuOH complexes were characterized not only by modern spectrum but also by calculation...The BF3/n-BuOH complexes were investigated as active species in catalyzing n-decene polymerization reaction.The structures of BF3/n-BuOH complexes were characterized not only by modern spectrum but also by calculation at theoretical level. The results confirmed that BF3/n-BuOH complexes changed from BF3·(n-BuOH)2 complexes to BF3·n-BuOH complexes with the mass fraction of BF3 increasing. These two complexes have different catalytic activity, but BF3·n-BuOH was superior. The highest n-decene conversion could reach 99% and the most excellent selectivity of n-decene trimer and tetramer could reach up to 80% yield by a series of controlled conditions. This work can help to understand the catalytic active species of n-decene polymerization and provide support for industrialization of poly-alpha-olefins(PAOs).展开更多
Functionalized cyclopentenes could be prepared through Sm/TMSCl/t-BuOH mediated hydrodimerization cyclization of gem-diactivated alkene in one-pot at room temperature. The trans- or trans, transform isomer is in the m...Functionalized cyclopentenes could be prepared through Sm/TMSCl/t-BuOH mediated hydrodimerization cyclization of gem-diactivated alkene in one-pot at room temperature. The trans- or trans, transform isomer is in the majority and the major product was isolated from its stereoisomers through the fractional crystallization method.展开更多
基金Support by National Key Research and Development Program of China(2017YFB0306701)State Key Laboratory Opening Project Foundation of Jilin University(2018-16).
文摘The BF3/n-BuOH complexes were investigated as active species in catalyzing n-decene polymerization reaction.The structures of BF3/n-BuOH complexes were characterized not only by modern spectrum but also by calculation at theoretical level. The results confirmed that BF3/n-BuOH complexes changed from BF3·(n-BuOH)2 complexes to BF3·n-BuOH complexes with the mass fraction of BF3 increasing. These two complexes have different catalytic activity, but BF3·n-BuOH was superior. The highest n-decene conversion could reach 99% and the most excellent selectivity of n-decene trimer and tetramer could reach up to 80% yield by a series of controlled conditions. This work can help to understand the catalytic active species of n-decene polymerization and provide support for industrialization of poly-alpha-olefins(PAOs).
基金Project (No. 29872010) supported by the National Natural Science Foundation of China, the NSF of Zhejiang Province, Chinathe laboratory of Organometallic chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.
文摘Functionalized cyclopentenes could be prepared through Sm/TMSCl/t-BuOH mediated hydrodimerization cyclization of gem-diactivated alkene in one-pot at room temperature. The trans- or trans, transform isomer is in the majority and the major product was isolated from its stereoisomers through the fractional crystallization method.
