Synthesis of hexamethylene-1,6-dicarbamate by methoxycarbonylation of 1,6-hexamethylene diamine with dimethyl carbonate over bulk and hybrid heteropoly acid catalyst
Ammar, Muhammad1,2; Cao, Yan1; Wang, Liguo1; He, Peng1; Li, Huiquan1
2017-12-01
发表期刊RESEARCH ON CHEMICAL INTERMEDIATES
ISSN0922-6168
卷号43期号:12页码:6951-6972
摘要

Synthesis of HDC by methoxycarbonylation of HDA with DMC was carried out over the bulk and hybrid heteropoly acid (HPA) catalyst. The catalysts were systematically characterized by XRD, FTIR, SEM and NH3-TPD techniques. The by-products produced in the reaction were identified and a possible reaction pathway was proposed based on the by-products analysis. The performances of bulk and hybrid HPA catalysts were evaluated. The H-4[SiW12O40] catalyst revealed high performance compared with other catalysts and its high performance was attributed to its acidic properties. Effects of reaction parameters and reusability of the H-4[SiW12O40] catalyst were also investigated. Under the optimized reaction conditions, HDA conversion reached 93.2% with 64.8% HDC selectivity and only 3.8% by-product selectivity. Moreover, a possible reaction mechanism was proposed for the synthesis of HDC over H-4[SiW12O40] catalyst.

关键词Dimethyl Carbonate 1 6-hexamethylene Diamine Methoxycarbonylation Reaction Hexamethylene-1 Bulk And Hybrid Heteropoly Acids 6-dicarbamate
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s11164-017-3030-4
收录类别SCI
语种英语
关键词[WOS]N-PHENYL CARBAMATE ; IONIC LIQUIDS ; OXIDATIVE CARBONYLATION ; ALIPHATIC-AMINES ; DIMETHYLHEXANE-1,6-DICARBAMATE ; 1,6-HEXANEDIAMINE ; ANILINE ; DECOMPOSITION ; POLYURETHANE ; NITROBENZENE
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Foundation of China(21476244 ; Youth Innovation Promotion Association CAS ; 21406245)
WOS记录号WOS:000414497800011
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23359
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Ammar, Muhammad,Cao, Yan,Wang, Liguo,et al. Synthesis of hexamethylene-1,6-dicarbamate by methoxycarbonylation of 1,6-hexamethylene diamine with dimethyl carbonate over bulk and hybrid heteropoly acid catalyst[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2017,43(12):6951-6972.
APA Ammar, Muhammad,Cao, Yan,Wang, Liguo,He, Peng,&Li, Huiquan.(2017).Synthesis of hexamethylene-1,6-dicarbamate by methoxycarbonylation of 1,6-hexamethylene diamine with dimethyl carbonate over bulk and hybrid heteropoly acid catalyst.RESEARCH ON CHEMICAL INTERMEDIATES,43(12),6951-6972.
MLA Ammar, Muhammad,et al."Synthesis of hexamethylene-1,6-dicarbamate by methoxycarbonylation of 1,6-hexamethylene diamine with dimethyl carbonate over bulk and hybrid heteropoly acid catalyst".RESEARCH ON CHEMICAL INTERMEDIATES 43.12(2017):6951-6972.
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