Crystal structure of 4-hydroxy-6-propenyl-5,6-dihydro-pyran-2-one, C8H10O3

L. C. Souza, D. O. Imbroisi, C. A. de Simone, Μ. A. Pereira, V. R. S. Malta, J. F. T. Oliveira
2005 Zeitschrift für Kristallographie - New Crystal Structures  
C8H10O3, monoclinic, P\2\lc\ (no. 14), a = 5.1640(2) A, b = 19.979(1) A, c = 7.5840(4) A, β = 104.540(2)°, V= 757.4 A 3 , Z= 4, Rg(F) = 0.049, wR^F 2 ) = 0.169, T= 293 K. Source of material The tide compound was synthesized, in 80 % overall yield, by the reaction in tetrahydrofuran, of ethyl acetoacetate dianion with crotonaldehyde, followed by ester hydrolysis in basic medium (NaOH, 0.5 M) and lactonization under acidic conditions (HCl, 36 %) [1], It was purified by crystallization from
more » ... ization from chloroform at 25 °C.
doi:10.1524/ncrs.2005.220.14.603 fatcat:q7joaxbi3zha7eabllt36veloy