Alkali metal 2-(1-adamantyl)ethynethiolates: Synthesis and reactions with electrophilic reagents
作者:M. L. Petrov、A. A. Shchipalkin、V. A. Kuznetsov、B. N. Viktorov
DOI:10.1134/s1070428010080166
日期:2010.8
Treatment of ethyl 2-[1-(1-admantyl)ethylidene]hydrazine-1-carboxylate with thionyl chloride gave 4-(1-adamantyl)-1,2,3-thiadiazole which readily underwent decomposition by the action of strong bases with formation of alkali metal 2-(1-adamantyl)ethynethiolates. The latter were brought into reactions with proton donors and benzyl halides.
Reaction of potassium 2-(1-adamantyl)ethynethiolate with nitrilimines
作者:M. L. Petrov、A. A. Shchipalkin、V. A. Kuznetsov
DOI:10.1134/s1070428011110248
日期:2011.11
New synthesis of 4-(1-adamantyl)-2-aryl-1,3-thiazoles from 4-(1-adamantyl)-1,2,3-thiadiazole
作者:A. A. Shchipalkin、M. L. Petrov、V. A. Kuznetsov
DOI:10.1134/s1070428011120165
日期:2011.12
Treatment of 4-(1-adamantyl)-1,2,3-thiadiazole with potassium tert-butoxide generated potassium 2-(1-adamantyl)ethynethiolate which reacted with aromatic carboxylic acid chlorides to give unstable S-[2-(1-adamantyl)ethynyl] arenecarbothioates whose acid hydrolysis afforded S-[ 2-(1-adamantyl)-2-oxoethyl] arenecarbothioates. The latter reacted with ammonium acetate in acetic acid yielding 4-(1-adamantyl)-2-aryl-1,3-thiadiazoles. Reactions of 4-(1-adamantyl)-2-(4-chloro-3-nitrophenyl)-1,3-thiadiazole with cyclic secondary amines gave the corresponding products of nucleophilic replacement of the chlorine atom in the aromatic ring.
New convenient method for preparation of amides of 1-adamantylthioacetic acids
作者:A. A. Shchipalkin、M. L. Petrov、V. A. Kuznetsov
DOI:10.1134/s107042801108015x
日期:2011.8
The reaction of 4-(1-adamantyl)-1,2,3-thiadiazole with potassium tert-butylate followed by treating with acetyl chloride and amine results in the formation of 1-adamantylthioacetic acid amides in moderate or good yields.
New method of preparation of 1-adamantylthioacetic acids dialkylamides from 4-(1-adamantyl)-1,2,3-thiadiazole