1607-31-4Relevant academic research and scientific papers
Selective Synthesis of Carbonates from Glycerol, CO 2, and Alkyl Halides Using tert -Butyltetramethylguanidine
Mihara, Masatoshi,Moroga, Kaname,Iwasawa, Tetsuo,Nakai, Takeo,Ito, Takatoshi,Ohno, Toshinobu,Mizuno, Takumi
supporting information, p. 1759 - 1764 (2018/07/21)
Herein, we describe the guanidine-promoted synthesis of carbonates from glycerol, CO 2, and alkyl halides. Specifically, a linear tricarbonate (1,2,3-tri- O -butoxycarbonylglycerol), a dicarbonate [butyl (2-oxo-1,3-dioxolan-4-yl)methyl carbonate] containing a linear and a cyclic moiety, and a cyclic monocarbonate (4-hydroxymethyl-2-oxo-1,3-dioxolan) were selectively obtained in good yields, which were strongly affected by the steric bulkiness of the guanidine group substituents. The developed method exhibits the advantages of high efficiency and mild conditions, thus being a powerful tool for the synthesis of value-added products from industrial by-products.
PROCESS FOR THE PRODUCTION OF GLYCEROL CARBONATE ESTERS
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Page/Page column 3, (2008/12/04)
The invention relates to a process for the production of glycerol carbonate esters corresponding to formula (I): in which R is hydrogen or an alkyl or alkenyl group containing 1 to 23 carbon atoms, which may be linear or branched, characterized in that a compound corresponding to formula (II): in which Y is a group —O—CO—Z and Z is hydrogen or an alkyl or alkenyl group containing 1 to 3 carbon atoms, which may be linear or branched, is transesterified with dimethyl carbonate or diethyl carbonate and an alkyl ester corresponding to formula (IV): in which R is as defined above and X is an alkyl or alkenyl group containing 1 to 8 carbon atoms, which may be linear or branched, with the proviso that the group R of compound (IV) is different from the group Z of compound (II), in the presence of a transesterification catalyst.
