Transesterification of propane-1,3-diols

Alkylene CCs have been prepared through the transesterification of appropriate glycols with dialkyl carbonates (usually diethyl or dimethyl carbonate) in the presence of a suitable catalyst. One of the first such examples was the synthesis of six-membered CCs by the transesterification of propane-1,3-diols with DEC catalyzed by sodium ethanolate (Equation 7.31) [289], The reaction was carried out at temperatures between 293 and 333 K, and a conversion yield of 40% was obtained. 

The synthesis of six-membered cyclic carbonates by transesterification of propane-1,3-diols (PPDs) with diethyl carbonate catalyzed with sodium ethanolate described by Carothers and Van Natta gives a yield of 40%. Also Pohoryles and... 

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See also in sourсe #XX -- [ , , ]

See also in sourсe #XX -- [ , , ]

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