METHOD FOR COMBINED PREPARING CHLOROFORM AND ALKYLENE CARBONATES Russian patent published in 2007 - IPC C07C19/04 C07D317/36 C07D317/38 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of chloroform and alkylene carbonates of the general formula: , wherein R means H, -CH₃. Method involves interaction of vicinal glycol with hexachloroacetone at elevated temperature in the presence of metal hydrosilicate of II-d or III-d group of the periodic system of elements followed by isolation of end products by the known methods. Calcium hydrosilicate, magnesium hydrosilicate, aluminum hydrosilicate, barium hydrosilicate or their mixtures are used preferably taken in the different mass ratios. Catalyst is used preferably in the amount 0.5-2% but preferably in the amount 0.8-1.2% of reagents mass. Invention provides increasing yield of chloroform and alkylene carbonate, enhancing their quality and expanding the raw base of substances used in catalytic process.

EFFECT: improved method of synthesis.

3 cl, 3 ex