期刊文献+

聚丙烯催化剂内给电子体环戊基-1,1-二甲醇二甲醚的合成 被引量:1

SYNTHESIS OF POLYPROPYLENE CATALYST INTERNAL DONOR 1,1-CYCLOPENTYL DIMETHANOLDIMETHYL ETHER
下载PDF
导出
摘要 以丙二酸二乙酯和1,4-二溴丁烷为起始原料,经烷基化、酯还原和醚化反应合成环戊基-1,1-二甲醇二甲醚,分别考察关键因素对3步合成反应的影响。适宜的工艺条件为:①烷基化反应时,n(丙二酸二乙酯)∶n(CsOH)∶n(1,4-二溴丁烷)=1.0∶2.2∶1.4,CsOH为催化剂,环戊基-1,1-二甲酸二乙酯的收率为93.0%;②酯还原反应时,以无水ZnCl2为催化剂,n(环戊基-1,1-二甲酸二乙酯)∶n(KBH4)=2.0∶1.0,环戊基-1,1-二甲醇的收率为88.1%;③醚化反应时,以四丁基溴化铵为催化剂,n(环戊基-1,1-二甲醇)∶n(NaOH)∶n(碳酸二甲酯)=1.0∶8.0∶2.4,环戊基-1,1-二甲醇二甲醚的收率为61.2%。 1,1-Cyclopentyl dimethanoldimethyl ether was synthesized from diethyl malonate and 1,4-dibromo butane by alkylation, ester reduction and etherification. The key factors affecting reactions were studied and the optimal reaction conditions were found as follows: (1) for alkylation,using CsOH as catalyst,n(diethyl malonate) : n(CsOH) : n(1,4-dibromo butane)= 1.0 : 2.2: 1.4,the yield of cyclobutane-1,1-dicarboxylic acid diethyl ester was 93.0%;(2)for ester reduction, using anhydro-ZnCl2 as catalyst,n(cyclopentyl-1,1-dicarboxylic acid diethyl ester) : n (KBH4) = 2.0 : 1.0, the yield of 1,1-cyclopentyl dimethanol was 88. 1%; (3)for etherification, using tetrabutyl ammonium bromide as catalyst, n(1,1-cyclopentyl dimethanol) n(NaOH) : n(dimethyl carbonate) = 1.0 : 8.0 : 2.4, the yield of 1,1- cyclopentyl dimethanoldimethyl ether was 61.2%.
出处 《石油炼制与化工》 CAS CSCD 北大核心 2011年第9期19-22,共4页 Petroleum Processing and Petrochemicals
基金 国家自然科学基金项目(20566004) 国家科技攻关计划项目(2001BA323C)
关键词 环戊基-1 1-二甲醇二甲醚丙二酸二乙酯 1 4-二溴丁烷 内给电子体 1, 1-cyclopentyl dimethanoldimethyl ether diethyl malonate 1,4-dibromo butane internal donor
  • 相关文献

参考文献8

  • 1余世金,许招会,王甡,崔国娣,陈魏,廖维林.外给电子体CMMS、DCPMS制备高结晶度聚丙烯的研究[J].应用化工,2004,33(4):37-38. 被引量:24
  • 2Hu Youliang, Chien J C W. Superactive and stereospeeffic catalysts:I. Structures and productivity[J]. Polym Sci Part A: Polym Chem, 1988,26(8) : 2003-2018.
  • 3Lu Honglan, Xiao Shijing. Structure and behaviour of SiO2/MgCl2 bisupported Ziegler-Natta catalysts for olefin polymerization[J]. Makromol Chem,1993,194(2) :421-429.
  • 4雷华,徐宏彬,冯连芳,姚小利,翁志学,徐国斌.丙烯聚合Z-N催化剂中的给电子体及其作用机理[J].高分子材料科学与工程,2004,20(6):51-54. 被引量:13
  • 5许招会,廖维林,程磊,张世金,王甡.9,9-双(甲氧基甲基)芴的合成及其结构表征[J].石油化工,2007,36(7):686-689. 被引量:6
  • 6Sacchi M C, Forlini I F,Tritto I, et al. Polymerization stereochemistry with Ziegler-Natta catalysts containing dialkylpropane diethers: A tool for understanding internal/external donor relationships [J]. Macromol Chem, 1996, 29 (10) : 3314-3345.
  • 7Morini G, Albizzati E, Balbontin G, et al. Microstructure distribution of polypropenes obtained in the presence of traditional phthalate/silane and novel diethers donors: A tool for understanding the role of electron donors in MgC12-supported Ziegler-Natta catalysts[J]. Macromol Chem, 1996,29 (18) : 5770-5776.
  • 8Xu Demin, Liu Zhongyang, Zhao Jian, et al. Highly active MgCl2-supported catalysts containing novel diether donors for propene polymerization[J]. Macromol Rapid Commun, 2000, (21): 1046-1049.

二级参考文献26

共引文献29

同被引文献42

引证文献1

二级引证文献3

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部