No abstract

The reactions of the 1‐adamantyl (Ia), 2‐adamantyl (Ib) and 1‐adamantylmethyl (Ic) Grignard reagents with various carbonyl compounds are studied in order to determine the influence of steric factors.

Enantioselective Syntheses of Chrysanthemic Acid and Its Derivatives -(30 refs.). -(FOKIN, A. A.; FEDORENKO, T. V.; YURCHENKO, A. G.; Ukr. Khim. Zh. (Russ. Ed.) 58 (1992) 12, 1117-1122; Kiev. politekh. inst., Kiev, Ukraine; RU)

The reaction between the title compounds (I) and (II) affords (III) instead of the expected (IV).

bridged compoundsbridged compounds Q 0060 18 -177 2,2,2-Trifluoro-1-(1-adamantyl)ethylamine Hydrochloride.-1-Adamantyl trifluoromethyl ketone (III), prepared by coupling of 1adamantylmagnesium bromide (I) with trifluoroacetyl chloride (II), reacts with hydroxylamine-O-sulfonic acid to form the oxime (IV). Reduction of (IV) with lithium aluminum hydride followed by treatment with hydrochloric acid yields the title compound (V). -(YURCHENKO, A. G.; FEDORENKO, T. V.; TIKCHONOV, V. P.; SOLOSHONOK, V. A.; KUKHAR', V. P.; J.