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Promises and Challenges of Density Functional Theory in CO 2 Reduction
Jenbrie M. Kessete, Taye B. Demissie, Ahmed M. Mohammed
General Chemistry    DOI: 10.21127/yaoyigc20190019
Online available: 09 September 2019

Organocatalytic Regioselective Synthesis of Sulfur-Containing N-Alkyl Carbamates from Alkyne-Derived Cyclic Carbonates
Bin Liu, Xinghong Zhang
General Chemistry    2018, 4 (3): 180007-180007.   DOI: 10.21127/yaoyigc20180007
Abstract813)   HTML48)    PDF (350KB)(776)       Save
A highly regioselective synthesis of sulfur-containing N-alkyl carbamate from propargyl alcohol, carbon dioxide (CO2) and amine via metal-free catalysis is described. The regioselective ring-opening addition of tri-substituted cyclic carbonate with amine was investigated in detail. A key feature of this system is the ability to afford tertiary β-hydroxyl N-alkyl carbamate with 100% selectivity by using 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as the catalyst in a wide range of reaction temperatures. The steric hindrance of amine and the use of ethanol favored the regioselective ring-opening addition reaction. A proposed mechanism for the ring-opening addition elaborated the underlying reason for the regioselective synthesis of sulfur-containing N-alkyl carbamate. This study provides a new alternative synthetic route to sulfur-containing N-alkyl carbamates from alkyne and CO 2 and may offer an attractive scaffold for further synthesis.
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High Performance Layered Inorganic Flame Retardants: a Review
Dongqin Su, Zehua Tang, Jinfeng Xie, Zhengxu Bian, Junhao Zhang, Aihua Yuan
General Chemistry    DOI: 10.21127/yaoyigc20180021
Online available: 26 November 2018

High Performing CO 2 Capture by Smart Strategies in Functionalized Ionic Liquids
Mingguang Pan, Jianxin Zou
General Chemistry    DOI: 10.21127/yaoyigc20180018
Online available: 20 August 2018

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