Lithium Hydroxide → 3-[4-(4-Chloro-phenyl)-piperazin-1-yl]-2-methyl-propionic acid lithium salt

Participants

Reaction Steps

3-[4-(4-Chloro-phenyl)-piperazin-1-yl]-2-methyl-propionic acid methyl ester (586 mg; 1.98 mmol, prepared in accordance with Example 59) and lithium hydroxide (60 mg; 2.50 mmol) are suspended in a mixture of tetrahydrofuran (4 mL) and water (1 mL). The resulting mixture is irradiated in a mono-mode microwave oven for 50 minutes at 100° C. The mixture is then diluted with acetonitrile until precipitation occurs. The solid formed is then filtered and dried under high vacuum to afford the desired product (238 mg; 0.83 mmol).

Provenance & Evidence