acrylic Acid (V); Brucine Salt.-A solution of 3 g. of the acrylic acid (V) and 4.63 g. of anhydrous brucine in absolute ethanol was warmed on "the steam-bath. Following removal of the solvent, 50 cc. of absolute ether was added and the viscous material triturated until a fine powder was formed. A sample of 3 g. of this product, m. p. 115-126°( cor.), was refluxed with 400 cc. of absolute ether and filtered from a small amount of brucine. The solution was kept at 0°for twenty-four hours, whereupon an additional 0.5 g. of brucine was obtained. The solution was filtered, concentrated, seeded, and within forty-eight hours 0.5 g. of the brucine salt, m. p. 132-134°(cor.), was obtained. The salt was analyzed without further crystallization since fresh solvent was found to decompose the salt causing brucine to precipitate. Further low-melting crops could be obtained on concentration of the mother liquors.
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