NDLI: Phosgene-free decomposition of dimethylhexane-1,6-dicarbamate over ZnO

Please wait, while we are loading the content...

Dimethyl carbonate synthesis via transesterification of ethylene carbonate and methanol using ionic liquid catalysts immobilized on mesoporous cellular foams

Effect of potassium addition on bimetallic PtSn/θ-Al$_{2}$O$_{3}$ catalyst for dehydrogenation of propane to propylene

FT-IR study on CO$_{2}$ adsorbed species of CO$_{2}$ sorbents

Enhanced NH$_{3}$-SCR activity of Sb-V/CeO$_{2}$–TiO$_{2}$ catalyst at low temperatures by synthesis modification

Effect of Fe-zeolite on formation of N$_{2}$O in selective reduction of NO by NH$_{3}$ over V$_{2}$O$_{5}$–WO$_{3}$/TiO$_{2}$ catalyst

Effects of calcination and support on supported manganese catalysts for the catalytic oxidation of toluene as a model of VOCs

Effect of alkali metal salts on decomposition of ionic liquid like organic salt

Pt/oxide nanocatalysts synthesized via the ultrasonic spray pyrolysis process: engineering metal–oxide interfaces for enhanced catalytic activity

Steam reforming of ethylene glycol over Ni-based catalysts: the effect of K

Prereforming of n-tetradecane over Ce-promoted 50 wt% Ni/MgO–Al$_{2}$O$_{3}$ catalyst with high coke resistance

Syngas conversion beyond chemical equilibrium by in situ bimolecular reaction

Syngas production from methane dry reforming over Ni/Al$_{2}$O$_{3}$ catalyst

Glycerol steam reforming over Ni–Fe–Ce/Al$_{2}$O$_{3}$ catalyst for hydrogen production

The study on the effect of the substitution of K$_{2}$CO$_{3}$ with Ca(OH)$_{2}$ on kinetics on CO$_{2}$–lignite coal gasification

Synthesis and characterization of Al-modified SBA-15 for Fischer–Tropsch synthesis (FTS) reaction

Fischer–Tropsch synthesis on potassium-modified Fe$_{3}$O$_{4}$ nanoparticles

Effect of oxychlorination treatment on the regeneration of Pt–Sn/Al$_{2}$O$_{3}$ catalyst for propane dehydrogenation

Synthesis of Pb$_{ x }$Cr$_{1−x }$MoO$_{4}$ oxides using microwave process and their photocatalytic activity under visible light irradiation

Research on Chemical Intermediates : Volume 41

Research on Chemical Intermediates : Volume 40

Research on Chemical Intermediates : Volume 39

Research on Chemical Intermediates : Volume 38

Research on Chemical Intermediates : Volume 37

Research on Chemical Intermediates : Volume 36

Research on Chemical Intermediates : Volume 35

Research on Chemical Intermediates : Volume 34

Research on Chemical Intermediates : Volume 33

Research on Chemical Intermediates : Volume 32

Research on Chemical Intermediates : Volume 31

Research on Chemical Intermediates : Volume 30

Research on Chemical Intermediates : Volume 29

Research on Chemical Intermediates : Volume 28

Research on Chemical Intermediates : Volume 27

Research on Chemical Intermediates : Volume 26

Research on Chemical Intermediates : Volume 25

Research on Chemical Intermediates : Volume 24

Research on Chemical Intermediates : Volume 23

Phosgene-free decomposition of dimethylhexane-1,6-dicarbamate over ZnO

Content Provider	Springer Nature Link
Author	Hyun, Min Jeong Shin, Mi Kim, Yong Jin Suh, Young Woong
Copyright Year	2015
Abstract	In catalytic decomposition of dimethylhexane-1,6-dicarbamate (HDC) into hexamethylene-1,6-diisocyanate (HDI), Zn-containing homogeneous (i.e., zinc acetate) and heterogeneous (i.e., ZnO) catalysts were active among a number of catalysts tested, due to the great electron withdrawing ability of Zn ions. Particularly, when polyethylene glycol dimethyl ether was used as a solvent, ZnO was found to be relatively robust, because the catalytic performance was maintained up to the third use (HDC conversion of 93 % and HDI yield of 67 % at 180 °C for 1 h). Through investigation of a HDC/ZnO mixture at elevated temperatures by IR spectroscopy, a possible reaction scheme of ZnO-catalyzed decomposition of HDC was proposed. The H atom is removed from the N–H group of HDC by hydrogen bonding with an O site on the ZnO surface, followed by coordination of an O–C=O group in monodentate mode to a Zn site. The C–O group in the O–C=O linkage is then cleaved yielding the isocyanate and surface methoxide species. Finally, methanol is released from ZnO by a reaction between the surface methoxide and the hydroxyl species.
Starting Page	57
Ending Page	70
Page Count	14
File Format	PDF
ISSN	09226168
Journal	Research on Chemical Intermediates
Volume Number	42
Issue Number	1
e-ISSN	15685675
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-08-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Catalytic decomposition Hexamethylene-1,6-diisocyanate Dimethylhexane-1,6-dicarbamate ZnO Catalysis Physical Chemistry Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Phosgene-free synthesis of hexamethylene-1,6-diisocyanate by the catalytic decomposition of dimethylhexane-1,6-dicarbamate over zinc-incorporated berlinite (ZnAlPO4).

Catalysis over zinc-incorporated berlinite (ZnAlPO4) of the methoxycarbonylation of 1,6-hexanediamine with dimethyl carbonate to form dimethylhexane-1,6-dicarbamate

Phosgene-Free Synthesis of Phenyl Isocyanate by Catalytic Decomposition of Methyl N-Phenyl Carbamate over Bi2O3 Catalyst

Catalysis over zinc-incorporated berlinite (ZnAlPO4) of the methoxycarbonylation of 1,6-hexanediamine with dimethyl carbonate to form dimethylhexane-1,6-dicarbamate

Synthesis and structure investigation of hexamethylene diisocyanate (HDI)-based polyisocyanates

Urine 1,6-Hexamethylene Diamine (HDA) Levels Among Workers Exposed to 1,6-Hexamethylene Diisocyanate (HDI)

Phosgene-Free Synthesis of Carbamates over Zeolite-Based Catalysts

Non-isothermal thermal decomposition reaction kinetics of dimethylhexane-1,6-dicarbamate (HDC).

Polyurethanes as polymerizable dyes for hydrophobic polyester fabric

Phosgene-free decomposition of dimethylhexane-1,6-dicarbamate over ZnO

Similar Documents

Phosgene-free synthesis of hexamethylene-1,6-diisocyanate by the catalytic decomposition of dimethylhexane-1,6-dicarbamate over zinc-incorporated berlinite (ZnAlPO4).

Catalysis over zinc-incorporated berlinite (ZnAlPO4) of the methoxycarbonylation of 1,6-hexanediamine with dimethyl carbonate to form dimethylhexane-1,6-dicarbamate

Phosgene-Free Synthesis of Phenyl Isocyanate by Catalytic Decomposition of Methyl N-Phenyl Carbamate over Bi2O3 Catalyst

Catalysis over zinc-incorporated berlinite (ZnAlPO4) of the methoxycarbonylation of 1,6-hexanediamine with dimethyl carbonate to form dimethylhexane-1,6-dicarbamate

Synthesis and structure investigation of hexamethylene diisocyanate (HDI)-based polyisocyanates

Urine 1,6-Hexamethylene Diamine (HDA) Levels Among Workers Exposed to 1,6-Hexamethylene Diisocyanate (HDI)

Phosgene-Free Synthesis of Carbamates over Zeolite-Based Catalysts

Non-isothermal thermal decomposition reaction kinetics of dimethylhexane-1,6-dicarbamate (HDC).

Polyurethanes as polymerizable dyes for hydrophobic polyester fabric

Phosgene-free decomposition of dimethylhexane-1,6-dicarbamate over ZnO