Chiral Salan Aluminium Ethyl Complexes and Their Application in Lactide Polymerization | |
Du HZ ; Velders AH ; Dijkstra PJ ; Sun JR ; Zhong ZY ; Chen XS ; Feijen J | |
刊名 | chemistry-a european journal |
2009 | |
卷号 | 15期号:38页码:9836-9845 |
关键词 | RING-OPENING POLYMERIZATION GROUP-3 METAL-COMPLEXES RAC-LACTIDE STEREOSELECTIVE POLYMERIZATION RACEMIC LACTIDE ASYMMETRIC OXIDATION TITANIUM COMPLEXES CYCLIC ESTERS ISOSPECIFIC POLYMERIZATION EPSILON-CAPROLACTONE |
ISSN号 | 0947-6539 |
通讯作者 | feijen j |
中文摘要 | synthetic routes to aluminium ethyl complexes supported by chiral tetradentate phenoxyamine (salan-type) ligands [al(oc6h2(r-6-r-4)ch2)(2){ch3n(c6h10)nch3}-c2h5] 7: r = h ; 5, 8: r = cl; 6, 9: r = ch3) are reported. enantiornerically pure salan ligands 1-3 with (r,r) configurations at their cyclohexane rings afforded the complexes 4, 5, and 6 as mixtures of two diastereoisomers (a and b). each diastereoisomer a was, as determined by x-ray analysis, monomeric with a five-coordinated aluminium central core in the solid state, adopting a cis-(o,o) and cis-(me,me) ligand geometry. from the results of variable-temperature (vt) h-1 nmr in the temperature range of 220-335 k, h-1-h-1 noesy at 220 k, and diffusion-ordered spectroscopy (dosy), it is concluded that each diastereoisomer b is also monomeric with a five-coordinated aluminium central core. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000270435600027 |
公开日期 | 2010-05-27 |
内容类型 | 期刊论文 |
源URL | [http://ir.ciac.jl.cn/handle/322003/11847] |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | Du HZ,Velders AH,Dijkstra PJ,et al. Chiral Salan Aluminium Ethyl Complexes and Their Application in Lactide Polymerization[J]. chemistry-a european journal,2009,15(38):9836-9845. |
APA | Du HZ.,Velders AH.,Dijkstra PJ.,Sun JR.,Zhong ZY.,...&Feijen J.(2009).Chiral Salan Aluminium Ethyl Complexes and Their Application in Lactide Polymerization.chemistry-a european journal,15(38),9836-9845. |
MLA | Du HZ,et al."Chiral Salan Aluminium Ethyl Complexes and Their Application in Lactide Polymerization".chemistry-a european journal 15.38(2009):9836-9845. |
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