Cyanoethylation of 3-methyl-2-azafluorene

3-Methyl-9,9-di(β-cyanoethyl)-2-azafluorene was obtained from 3-methyl-2-azafluorene via the Michael reaction and was converted to the dibasic acid and its diester. Dieckmann condensation of the latter and subsequent hydrolysis gave 3-methyl-4′-oxospiro(2-azafluorene-9,1′-cyclohexane). © 1974 Consultants Bureau, a division of Plenum Publishing Corporation

Cyanoethylation of 3-methyl-2-azafluorene

3-Methyl-9,9-di(β-cyanoethyl)-2-azafluorene was obtained from 3-methyl-2-azafluorene via the Michael reaction and was converted to the dibasic acid and its diester. Dieckmann condensation of the latter and subsequent hydrolysis gave 3-methyl-4′-oxospiro(2-azafluorene-9,1′-cyclohexane). © 1974 Consultants Bureau, a division of Plenum Publishing Corporation

1-Hydroxy- and 1-nitroso-2,5-dimethylpiperid-4-ones and their derivatives

Derivatives of 1-hydroxy-2,5-dimethylpiperid-4-one substituted at the hydroxy and the carbonyl groups have now been prepared and the IR spectra of some of them have been studied. 1-Nitroso-2,5-dimethylpiperid-4-one has been prepared from 2,5-dimethylpiperid-4-one and subjected to various reactions at the nitroso- and the carbonyl groups. The IR spectra of the N-nitroso-compounds prepared are discussed. © 1971 Consultants Bureau

Reactions of 2, 5-dimethyl-4-triphenylsilylpyridine at the α-methyl group

5-Methyl-4-triphenylsilylpyridine-2-carboxylic acid was synthesized, esterified, and decarboxylated. Several transformations of trans-5-methyl-4-triphenylsilyl-2-styrylpyridine were examined. © 1974 Consultants Bureau