135578-09-5Relevant articles and documents
CHLORINATING PROPERTIES OF THE TRIMETHYLCHLOROSILANE-POTASSIUM BROMATE-DMF SYSTEM
Zav'yalov, S. I.,Sitkareva, I. V.,Ezhova, G. I
, p. 356 - 358 (2007/10/02)
β-Dicarbonyl compounds such as ethyl acetoacetate, dimedone, and Meldrum's acid derivatives undergo monochlorination by the action of a mixture of ClSiMe3 and KBrO3 in DMF at ca. 20 deg C. Keywords: β-dicarbonyl compounds, monochlorination.
MELDRUM'S ACID - A REAGENT FOR THE SYNTHESIS OF UNSATURATED γ-LACTONES AND β-ACYLACRYLIC ACIDS
Zav'yalov, S. I.,Zavozin, A. G.,Kravchenko, N. E.
, p. 1090 - 1092 (2007/10/02)
The thermal cyclization of 2,2-dimethyl-5-(2-aryl-2-oxoethyl)-1,3-dioxan-4,6-diones forms 5-aryl-β,γ-butenolides.Regioselective chlorination of 2,2-dimethyl-5--1,3-dioxane-4,6-diones by SO2Cl2 gives the 5-chloro derivatives, thes