1. Reporter: Sun Beiqi
Supervisor: Prof. Mo
Date: /8/2016

2. Outline 1. Introduction 2. Reaction 3. Mechanism 4. Synthetic Route
5.Results

3. Introduction

4. Introduction
The development of practical catalytic systems that would employ methane as C1-source for synthetic purposes constitutes one of the challenges of modern chemistry.
There are only a few catalytic systems that have been described for the chemical transformation of methane into functionalized products in the homogeneous phase

5. Introduction

6. Reaction Create carbene, dissolve in scCO2 C-C bond formed
Cheap relatively
EDA
supercritical carbon
dioxide (scCO2) as the reaction medium
Dissolve CH4
C1-source
The combination of
fluorine and bromine substituents in a ligand could improve the
solubility of its complexes in scCO2.

7. Mechanism

8. Synthetic Route
The mixture was heated with slow stirring under nitrogen at 140 °C for 1 h allowing the gases to leave the' reactor. After that time, the temperature was raised to 170 °C and the reactor was closed

9. Synthetic Route 2 3

10. Results
The reaction was performed with a 1:50 ratio of the catalyst precursor (0.005 mmol of 2 or 3) and EDA (0.25 mmol) in a mixture of carbon dioxide (90 atm) and methane (160 atm), at 40 °C.
Catalyst 2 yield: 4% with respect to initial EDA,96% of initial EDA was converted into a mixture of diethyl fumarate and maleate
Maybe metal-catalyzed carbene coupling. It can be minimized by maintaining a low concentration in the reaction mixture, but the pressure is too high to permit

11. Results
For copper-based catalysts, barriers are higher than those calculated for the silver counterpart

12. Results

13. Something to show you in supporting information!
Thank you!