Pyridine → HCID 68771741, compound

Participants

Reaction Conditions

Reaction Steps

14.3 mL of pyridine is added at 0° C., to a solution of Meldrum's acid (10.60 g, 73.5 mmol) in 70 mL of anhydrous CH2Cl2. After stirring for 15 min at this temperature, commercial tetradecanoyl chloride (18.16 g, 73.5 mmol) is added dropwise, so that the temperature remains below 10° C. After stirring for 2 h at 0° C. and for 1 h at ambient temperature, the reaction medium is washed with 50 mL of a 2N solution of HCl then 2×50 mL of water. After a last washing with a saturated aqueous solution of NaCl, the organic phase is dried over MgSO4, filtered and concentrated under vacuum. The oil obtained is crystallized by the addition of absolute ethanol then left overnight in the refrigerator. The solid is then filtered then rinsed with cold absolute ethanol before being dried in order to produce compound 17 (21.25 g, 59.9 mmol, 81%) in the form of a white solid.

Provenance & Evidence