Cycloaddition of anhydro bases of heterocyclic cations. 2. Synthesis of spirocyclic and carcass structures in the reaction of s-tetrazines with the anhydro base of a quaternary lepidinium salt

1991 ◽  
Vol 27 (11) ◽  
pp. 1247-1252
Author(s):  
E. G. Kovalev ◽  
G. L. Rusinov ◽  
G. G. Aleksandrov ◽  
V. A. Anufriev ◽  
E. O. Sidorov ◽  
...  
Keyword(s):  
Anhydro Base ◽  
Anhydro Bases ◽  
Heterocyclic Cations

Cycloaddition of anhydro bases of heterocyclic cations.

1990 ◽  
Vol 26 (9) ◽  
pp. 1038-1043
Author(s):  
E. G. Kovalev ◽  
G. L. Rusinov ◽  
V. A. Anufriev ◽  
L. G. Egorova
Keyword(s):  
Anhydro Bases ◽  
Heterocyclic Cations

3,4-DIHYDRO-β-CARBOLINES: I. THE ALKYLATION OF 1-SUBSTITUTED Nβ-ALKYL-3,4-DIHYDRO-β-CARBOLINE ANHYDRO BASES

1962 ◽  
Vol 40 (11) ◽  
pp. 2041-2048 ◽  
Author(s):  
R. N. Gupta ◽  
Ian D. Spenser
Keyword(s):  
Ring Opening ◽  
Anhydro Base ◽  
Anhydro Bases

Methylation of the anhydro base derived from 1-methyl-3,4-dihydro-β-carboline methiodide is accompanied by ring opening and yields 3-[2-acetylindolyl]-β-ethyltrimethylammonium iodide, and not a 2,2-dialkyl-1-methylene-1,2,3,4-tetrahydro-β-carbolinium salt, as reported.

scholarly journals LXXII.—Notes on anhydro-bases. I. Ethenyltriamidonaphthalene

1887 ◽  
Vol 51 (0) ◽  
pp. 691-700 ◽  
Author(s):  
Raphael Meldola ◽  
F. W. Streatfeild
Keyword(s):  
Anhydro Bases

Anhydro bases of the pyridine series (review)

1982 ◽  
Vol 18 (3) ◽  
pp. 217-232 ◽  
Author(s):  
T. V. Stupnikova ◽  
B. P. Zemskii ◽  
R. S. Sagitullin ◽  
A. N. Kost
Keyword(s):  
Pyridine Series ◽  
Anhydro Bases

Potentially tautomeric pyridines. IV. Ethyl 2-, 3-, and 4-pyridyl acetate

1964 ◽  
Vol 17 (4) ◽  
pp. 455 ◽  
Author(s):  
RA Jones ◽  
AR Katritzky
Keyword(s):  
Quantitative Estimation ◽  
Infrared Spectral ◽  
Methyl Derivatives ◽  
Anhydro Bases

Ultraviolet and infrared spectral comparisons of the isomeric pyridylacetic esters with the anhydro bases derived from the corresponding N-methyl derivatives show that the title compounds exist predominantly in the pyridine form. Basicity measurements provided a quantitative estimation of the tautomeric ratios.

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