Russian Chemical Bulletin p. 1889 - 1894 (1994)
Update date:2022-08-03
Topics: Lactonization
Kostyanovsky, R. G.
El'natanov, Yu. I.
Krutius, O. N.
Chervin, I. I.
Methylene-bis-tartronates and methylene-bis-hydroxymethylmalonates from monolactones where the CO2R and OH (or CH2OH) groups are known to be cis-oriented.However, attempts to prepare the corresponding dilactones failed due to the unsufficient proximity of these functional groups. the results have been confirmed by NMR spectra. - Key words: methylene-bis-tartronates, monolactones of methylene-bis-tartronic and methylene-bis-hydroxymethylmalonic acids, conformation, 1H and 13C NMR spectra.
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