Water → HCID 136336801, compound

Participants

Reaction Conditions

Reaction Steps

In a pressure vessel a mixture of 18 (1.00 g, 2.6 mmol, 1 eq) and pyridiniumhydrochloride (1.75 g, 15.1 mmol, 5.8 eq) was heated to 210° C. under an inert atmosphere and vigorously stirred at this temperature over a three days period. The mixture was allowed to cool down to room temperature. The solidified melt was dissolved in chloroform (50 mL) and water (50 mL) and treated in an ultrasonic bath for 5 minutes. The layers were separated and the aqueous layer was extracted with chloroform (3×50 mL). Afterwards, the combined organic layers were washed with a saturated aqueous sodium hydrogencarbonate solution (5×50 mL) followed by water (3×50 mL) and dried over magnesium sulphate. Evaporation of the solvent at 40° C. led to an old rose coloured solid. The product was directly used in the next step without any further purification.

Provenance & Evidence