The effect of substitution on the utility of piperidines and octahydroindoles for reversible hydrogen storage was written by Cui, Yi;Kwok, Samantha;Bucholtz, Andrew;Davis, Boyd;Whitney, Ralph A.;Jessop, Philip G.. And the article was included in New Journal of Chemistry in 2008.Formula: C9H10N2 This article mentions the following:
Substituted piperidines and octahydroindoles are compared in terms of their usability as reversible organic hydrogen storage liquids for hydrogen-powered fuel cells. Theor. Gaussian calculations indicate which structural features probably lower the enthalpy of dehydrogenation. Exptl. results show that attaching electron donating or conjugated substituents to the piperidine ring greatly increases the rate of catalytic dehydrogenation, with the greatest rates being observed with 4-aminopiperidine and piperidine-4-carboxamide. Undesired side reactions were observed with some compounds such as alkyl transfer reactions during the dehydrogenation of 4-dimethylaminopiperidine, C-O and C-N cleavage reactions during hydrogenation and/or subsequent dehydrogenation of 4-alkoxy- and 4-aminoindoles, and disproportionation during the hydrogenation of 4-aminopyridine. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-indol-4-amine (cas: 85696-95-3Formula: C9H10N2).
1-Methyl-1H-indol-4-amine (cas: 85696-95-3) belongs to indole derivatives. Indole exists overwhelmingly in the 1H-indole form as do other simple indoles. Indole plays a fundamental role for QS in E. coli, being one of the signal molecules responsible for the transcription of a variety of genes (gabT, and tnaB ASTD). Formula: C9H10N2
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles