Reaction of N-(Dialkylaminomethyl) amides and N-(α-Dialkylaminobenzyl) amides with Sulfides and Cyanide
作者:HIDEO SAKAI、KEIICHI ITO、MINORU SEKIYA
DOI:10.1248/cpb.21.2257
日期:——
The substitution of the dialkylamine residue of N-(dialkylaminomethyl) amides with nucleophiles leading to the formation of the amidomethyl compounds, reported in several papers by Hellmann, et al. has been shown not to occur with sulfides and cyanide under the condition of heating in methanol preferably in the presence of sodium hydroxide, whereas the substitution of the amide residue is chiefly effected. By similar manners the substitution reactions of N-(α-dialkylaminobenzyl) amides with sulfides and cyanide have been also realized.
Reductive Cleavage Reaction of N, N'-, N, O- and N, S-Linked Alkylidene Compounds by Sodium Borohydride
作者:KUNIAKI SHIMIZU、KEIICHI ITO、MINORU SEKIYA
DOI:10.1248/cpb.22.1256
日期:——
Sodium borohydride reduction was undertaken with a variety of N, N'-, N, O- and N, S-linked alkylidene compounds in aqueous ethanolic medium at room temperature. It has been realized that reductive cleavage of one of these two alkylidene carbon-heteroatom bonds is generally effected in this reduction, disclosing which alkylidene bond is initially cleaved when the two bonds are different.
One-pot synthesis, spectroscopic characterizations, quantum chemical calculations, docking and cytotoxicity of 1-((dibenzylamino)methyl)pyrrolidine-2,5-dione
investigations of stabilization energy, bond order, intra-molecular interactions and energy gap of pharmaceutical drugs are useful for understanding their behaviour. A new Mannich base molecule 1-((dibenzylamino)methyl)-pyrrolidine-2,5-dione (SBF) was synthesized through sequential Mannich reactions of an imide with an aldehyde and the intermediate obtained are reacted with secondary amine to get the desired