Synthesis of N,N′-di(tert-butyl)bispidin-9-ones

Heat Capacity Function, Enthalpy of Formation and Absolute Entropy of Mg(AlH4)2

“…While Callini et al [25] . correlate $${{\rm{\Delta }}_{\rm{F}} H}$$ with the Pauling electronegativity $${\chi _{\rm{P}} }$$ , Kuznetsov and Dymova [26] as well as Karapet'yants [27] base their approximation methods on the assumption that alanates behave analogously to prechlorates or boranates. Since we report a new experimental value for $${{\rm{\Delta }}_{\rm{F}} H}$$ of Mg(AlH 4 ) 2 in this study, we also aimed to update those proposed estimations.…”

“…Besides estimating enthalpies of formation of alanates based on their analogy to the perchlorates, Kuznetsov and Dymova [26] also approximated Gibbs formation energies of alanates in the same way. Therefore, it should also be possible to estimate the absolute entropy of alanates by correlating them to those of the perchlorates.…”

“…Furthermore, the estimation of thermodynamic data for other alanates M(AlH 4 ) n is analyzed within this study. For doing so, we update and expand the estimation of enthalpies of formation based on the Pauling electronegativity, [25] the enthalpy of formation of the corresponding perchlorates M(ClO 4 ) n [26] or boranates M(BH 4 ) n [27] . Additionally, we report about correlations between the absolute entropy $${S}$$ of alanates and the one of the corresponding perchlorates or boranates [27] .…”

Synthesis of fragrant 1,3-diazaadamantan-6-ones

“…1 The low yields of monosubstituted diazaada mantanones as compared to the disubstituted ones are explained by the involvement of all five labile hydrogen atoms of methyl ketones in the condensation, as it was shown in our work. 10 Despite the low yields of monosubstituted diazaada mantanones, they are of theoretical and practical interest due to the fact that a number of methyl ketones are known as naturally occurring fragrances used in cosmetics, per fumery, and as food additives.…”