Carboxamides and amines having two and three adamantane fragments
摘要:
New carboxamides having two and three adamantane fragments were synthesized from adamantanecarboxylic acid chlorides and adamantane-containing amines. The amides were reduced to the corresponding amines, and the latter were converted into N-p-nitrophenylsulfonyl and N-p-tolylsulfonylcarbamoyl derivatives by treatment with p-nitrobenzenesulfonyl chloride and p-toluenesulfonyl isocyanate, respectively. The structure of the newly synthesized compounds was confirmed by IR and H-1 NMR spectroscopy. Some carboxamides turned out to be inactive in the reduction with lithium tetrahydridoaluminate, which was discussed in terms of the results of semiempirical quantum-chemical calculations.
Versatile Acylation of <i>N</i>-Nucleophiles Using a New Polymer-Supported 1-Hydroxybenzotriazole Derivative
作者:Iuliana E. Pop、Benoît P. Déprez、André L. Tartar
DOI:10.1021/jo961761g
日期:1997.4.1
The synthesis of a new polymer-supported coupling reagent derived from 1-hydroxybenzotriazole is described. An aminomethylated polystyrene was functionalized by reaction with 3-nitro-4-chlorobenzenesulfonyl chloride (2) followed by treatement with hydrazine hydrate, to give the polymeric N-benzyl-1-hydroxybenzotriazole-6-sulfonamide (4).The polymeric reagent 4 was shown to be highly efficient for the
Carboxamides and amines having two and three adamantane fragments
作者:L. I. Kas’yan、D. V. Karpenko、A. O. Kas’yan、A. K. Isaev、S. A. Prid’ma
DOI:10.1134/s1070428007110103
日期:2007.11
New carboxamides having two and three adamantane fragments were synthesized from adamantanecarboxylic acid chlorides and adamantane-containing amines. The amides were reduced to the corresponding amines, and the latter were converted into N-p-nitrophenylsulfonyl and N-p-tolylsulfonylcarbamoyl derivatives by treatment with p-nitrobenzenesulfonyl chloride and p-toluenesulfonyl isocyanate, respectively. The structure of the newly synthesized compounds was confirmed by IR and H-1 NMR spectroscopy. Some carboxamides turned out to be inactive in the reduction with lithium tetrahydridoaluminate, which was discussed in terms of the results of semiempirical quantum-chemical calculations.