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Ethyl , -disubstituted acetoacetates. These esters were prepared according to a method recently described from this laboratory.2 Ethyl , -dimethylacetoacetate2 was obtained in 65% yield; b.p. 180-184°; n2¿ 1.4162. Ethyl a,a-diethylacetoacetatei was prepared in 79% yield; b.p. 99-103°( 14 mm.); n2¿ 1.4300. Ethyl -methyl-a-n-butylacetoacetate was prepared with a yield of 82%; b.p. 119-120°( 16 mm.); n2¿ 1.4295.

Durch Umsetzung von Chinuclidin mit den entsprechenden Bromiden wurden die Salze (I) erhalten, die farblose, mäßig wasserlösliche, kristalline Verbindungen darstellen.