The phosphine-catalysed synthesis of cyclic α-methylene carbonates 2 directly from prop-2-ynyl alcohol derivatives and CO2 is described. These cyclic carbonates 2 are key intermediates for the selective access to β-oxopropyl carbonates 3 by reaction with alcohols under mild conditions, but in the presence of Et2N or KCN as catalyst.
J. M. Joumier, J. Fournier, C. Bruneau and P. H. Dixneuf, J. Chem. Soc., Perkin Trans. 1, 1991, 3271 DOI: 10.1039/P19910003271
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