| Synthesis of dialkyl hexamethylenedicarbamate from 1,6-hexamethylenediamine and alkyl carbamate over Y(NO3)3·6H2O catalyst | |
| Department | 绿色化学与催化研发中心 |
Zhang HZ(张宏哲); Guo XG(郭晓光); Zhang QH(张庆华) ; Ma YB(马昱博); Zhou HC(周瀚成); Li J(李健); Wang LG(王利国); Deng YQ(邓友全)
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| 2008 | |
| Source Publication | Journal of Molecular Catalysis A: Chemical
 |
| ISSN | 1381-1169 |
| Volume | 296Pages:36-41 |
| Abstract | The non-phosgene carbonylation of 1,6-hexamethylenediamine (HDA) with alkyl carbamates using Y(NO3)3·6H2O as a catalyst and the influence of reaction variables on the yields of dialkyl hexamethylenedicarbamate (HDC) were studied. At 453K and in the presence of 5 wt.% Y(NO3)3·6H2O, nearly 100% HDA conversion and 85% dibutyl hexamethylenedicarbamate (BHDC) isolated yield could be achieved when butyl carbamate (BC) was employed as a carbonyl source. During reaction, an induction periodwas observed, but it almost disappeared by pretreating the catalyst with n-butanol. The FT-IR, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) characterizations of the catalyst showed that some transformation occurred when the catalyst was pretreated with n-butanol or employed during reaction, i.e., part decomposition of Y(NO3)3 to Y2O3, conversion from crystal to amorphous state, changes occurring in chemical state of the active species, as well as some subtle interactions between the catalyst and n-butanol. All these observed changes might be the reason resulting in activation of the catalyst. |
| Keyword | Green Chemistry Alkyl Carbamate Dialkyl Hexamethylenedicarbamate Non-phosgene 1 6-hexamethylenediamine |
| Subject Area | 物理化学 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 绿色催化课题 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3653 |
| Collection | 绿色化学研究发展中心 |
| Corresponding Author | Deng YQ(邓友全) |
| Recommended Citation GB/T 7714 | Zhang HZ,Guo XG,Zhang QH,et al. Synthesis of dialkyl hexamethylenedicarbamate from 1,6-hexamethylenediamine and alkyl carbamate over Y(NO3)3·6H2O catalyst[J]. Journal of Molecular Catalysis A: Chemical,2008,296:36-41. |
| APA | 张宏哲.,郭晓光.,张庆华.,马昱博.,周瀚成.,...&邓友全.(2008).Synthesis of dialkyl hexamethylenedicarbamate from 1,6-hexamethylenediamine and alkyl carbamate over Y(NO3)3·6H2O catalyst.Journal of Molecular Catalysis A: Chemical,296,36-41. |
| MLA | 张宏哲,et al."Synthesis of dialkyl hexamethylenedicarbamate from 1,6-hexamethylenediamine and alkyl carbamate over Y(NO3)3·6H2O catalyst".Journal of Molecular Catalysis A: Chemical 296(2008):36-41. |
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| 张宏哲-JMC.pdf（607KB） | 开放获取 | License | View Application Full Text | |||
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