Lactam acetals

Граник, В. Г.; Sukhoruchkin, A. G.; Kuryatov, N. S.; Pakhomov, V. P.; Глушков, Р. Г.

doi:10.1007/bf00471574

Cited by 2 publications

(1 citation statement)

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“…When the imidate 6a is heated with a catalytic amount of dimethyl sulfate, it is converted into N-methylpiperidin-2-one in a yield of >90%. 37 N-Methylpiperidone is also formed (yield 76%) in the absence of dimethyl sulfate when the imidate 6a is heated in boiling benzene for 6 h. 245 In a study of the isomerisation of imidates into N-methylated lactams, it has been found that the rate of formation of the intermediate adducts 331 decreases as the size of the ring increases. 246 On heating in THF in the presence of PdCl 2 .…”

Section: Isomerisationmentioning

confidence: 99%

2,3,4,5-Tetrahydropyridine (Δ¹-piperideine) and its derivatives. Synthesis and chemical properties

Shvekhgeimer¹

1998

Russ. Chem. Rev.

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We study the influence of the tetragonalization occurring during the martensitic phase transition on the exchange interactions in Ni 2 MnGa Heusler alloy using first-principles calculations in conjunction with the frozen-magnon approximation. We show that the tetragonalization alters only the exchange constants characterizing the Mn-Mn interactions. Calculated Curie temperatures within the random-phase approximation are found to agree with experimental data. Moreover, we study the temperature dependence of the magnetization and the small deviation from the experimental data exactly at the temperature of the phase transition is discussed. Obtained results agree with previous theoretical results using Liechtenstein's formula to calculate the exchange constants and the Monte Carlo simulation technique to estimate the Curie temperature.have studied the exchange constants for the stoichiometric Ni 2 MnGa alloys for three values of the c/a ratio (c/a = 0.95, 1 and 1.25) using Liechtenstein's formula [31,32] while Monte Carlo simulations have been employed to estimate a Curie temperature of 375 K for the cubic austenitic phase [33]. Recently, the same group of authors have studied the exchange constants for the off-stoichiometric alloys both in the austenitic and martensitic phases [34,35], while Ghosh and Sanyal have focused only in the austenitic phase [36].

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Section: Isomerisationmentioning

confidence: 99%

2,3,4,5-Tetrahydropyridine (Δ¹-piperideine) and its derivatives. Synthesis and chemical properties

Shvekhgeimer¹

1998

Russ. Chem. Rev.

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An Improved Synthesis of β-Carboline and Azepino-and Azocino[3,4-b]Indole Derivatives from Lactams

Tokmakov

2014

Chem Heterocycl Comp

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Lactam acetals

Cited by 2 publications

References 3 publications

2,3,4,5-Tetrahydropyridine (Δ¹-piperideine) and its derivatives. Synthesis and chemical properties

2,3,4,5-Tetrahydropyridine (Δ¹-piperideine) and its derivatives. Synthesis and chemical properties

An Improved Synthesis of β-Carboline and Azepino-and Azocino[3,4-b]Indole Derivatives from Lactams

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Lactam acetals

Cited by 2 publications

References 3 publications

2,3,4,5-Tetrahydropyridine (Δ1-piperideine) and its derivatives. Synthesis and chemical properties

2,3,4,5-Tetrahydropyridine (Δ1-piperideine) and its derivatives. Synthesis and chemical properties

An Improved Synthesis of β-Carboline and Azepino-and Azocino[3,4-b]Indole Derivatives from Lactams

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Product

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2,3,4,5-Tetrahydropyridine (Δ¹-piperideine) and its derivatives. Synthesis and chemical properties

2,3,4,5-Tetrahydropyridine (Δ¹-piperideine) and its derivatives. Synthesis and chemical properties