In 2022,Kasakado, Takayoshi; Fukuyama, Takahide; Nakagawa, Tomohiro; Taguchi, Shinji; Ryu, Ilhyong published an article in Beilstein Journal of Organic Chemistry. The title of the article was 《High-speed C-H chlorination of ethylene carbonate using a new photoflow setup》.Product Details of 872-36-6 The author mentioned the following in the article:
Reported the high-speed C-H chlorination of ethylene carbonate, which gives chloroethylene carbonate, a precursor to vinylene carbonate. A novel photoflow setup designed for a gas-liquid biphasic reaction turned out to be useful for the direct use of chlorine gas. The setup employed sloped channels so as to make the liquid phase thinner, ensured a high surface-to-volume ratio. When ethylene carbonate were introduced to the reactor, the residence time were measured to be 15 or 30 s, depending on the slope of the reactor set at 15 or 5°, resp. Such short time of exposition sufficed the photo C-H chlorination. The partial irradiation of the flow channels also sufficed for the C-H chlorination, which was consistent with the requirement of photoirradiation for the purpose of radical initiation. Near-complete selectivity for single chlorination required the low conversion of ethylene carbonate such as 9%, which were controlled by limited introduction of chlorine gas. At a higher conversion of ethylene carbonate such as 61%, the selectivity for monochlorinated ethylene carbonate over dichlorinated ethylene carbonate was 86%. Also found that the substrate contamination with water neg. influenced the performance of the C-H chlorination. The results came from multiple reactions, including the reaction of Vinylene carbonate(cas: 872-36-6Product Details of 872-36-6)
Vinylene carbonate(cas: 872-36-6) belongs to esters. Alkyl carbonates find applications as solvents for lithium ion battery electrolytes and the use of high quality battery grade electrolytes having extremely low water (<10 ppm) and acid (<10 ppm) contents are critical for achieving high electrochemical performance.Product Details of 872-36-6
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics