1-27
The use of protecting groups in the synthesis of purine derivatives (review)
E. V. Aleksandrova and P. M. Kochergin
28-34
Conformational analysis of N-vinyl-2-phenylpyrrole
Yu. Yu. Rusakov, L. B. Krivdin, N. V. Istomina, E. Yu. Schmidt and A. I. Mikhaleva
35-41
Synthesis, reactions and biological activity of 2-substituted 3-cyano-4,6-dimethylpyridine derivatives
F. A. Yassin
42-47
Condensed isoquinolines 33*. Synthesis of 1′-R-spiro-[7H,8H-2a,7a-diazacyclopenta-[fg]naphthacene-2,4′-(1′H)-pyridine]-1,8(2H)-diones
L. M. Potikha, R. M. Gutsul and V. A. Kovtunenko
48-54
4-hydroxy-2-quinolones 151. Reaction of 4-chloro-3-ethoxycarbonyl-2-oxo-1,2-dihydroquinolines with p-toluenesulfonylhydrazide
I. V. Ukrainets, A. A. Tkach, V. V. Kravtsova and A. V. Turov
55-58
Unexpected cyclization route for o-ethynylbenzoic acids hydrazides in the presence of base
S. F. Vasilevsky and T. F. Mikhailovskaya
59-65
Synthesis of N'-substituted amidines through the cleavage an oxadiazolone heterocycle by weakly basic nucleophiles. Effect of the nature of the nucleophile and of the nucleophile/substrate molar ratio
Yu. F. Polienko, I. A. Grigor’yev and M. A. Voinov
66-69
Novel approach to the synthesis of 1,3-diazapyrenes
A. V. Aksenov, I. V. Borovlev, I. V. Aksenova, D. A. Lobach and A. S. Lyakhovnenko
70-79
Standard enthalpies of formation in the gas phase and relative stability of tautomers of C-nitro-1,2,4-triazole and isomers of N-alkyl-C-nitro-1,2,4-triazole: quantum-chemical studies
O. A. Ivashkevich, Vadim E. Matulis, P. D. Elkind, P. N. Gaponik and G. T. Sukhanov, et al.
80-84
Synthesis of a new conjugated 2,2′-(1,4-phenylenedivinylene)bis-quinoxaline and a series of styryl derivatives of quinoxaline and quinoline as promising electro- and photoluminescent materials
B. Bachowska and G. Matusiak
85-92
Dearylation with aromatization on cyclocondensation of 4-(dimethyl-amino)benzaldehyde, 2-phenacylaza-heterocycles, and 1,3-[N,C]dinucleophiles
I. B. Dzvinchuk
93-104
Heterocycles with a bridging nitrogen atom. 19. Development of routes for the synthesis of oxazoloisoquinolinium salts based on phenacylation of α-methyl-1(3)-isoquinolones
E. V. Babaev, A. A. Nevskaya, I. V. Dlinnykh and V. B. Rybakov
105-110
Thiocyanatocarbonyl compounds. The reaction of phosphoryl-α-thio-cyanatoacetaldehydes and their acetals with diethylamine
Kh. A. Asadov, G. G. Mikailov, S. N. Guseinova, R. N. Burangulova and R. J. Valiullina, et al.
111-112
Letter to the Editor
Conformational isomerism of 3-isopropyl-1,3-dioxane
A. E. Kuramshina and V. V. Kuznetsov
113-114
Letter to the Editor
N-tosylcarbamide derivatives of 2-pyrazinium and 9-acridinium salts as inhibitors of acetylcholine potassium channels in cardiomyocytes
A. P. Stankevicius, L. N. Janusiene, V. I. Gendviliene and D. P. Zablockaite
115-116
Letter to the Editor
Peculiarities of transformations of unsubstituted quinazoline with C-nucleophiles
Yu. A. Azev and S. V. Shorshnev
117-118
Letter to the Editor
An original approach to the synthesis of the benzo[g]indazole heterocyclic system
I. V. Aksenova, A. V. Aksenov and N. A. Aksenov
119-120
Letter to the Editor
Synthesis of new heterocyclic system – 1,3,4-triazapyrene
A. V. Aksenov, I. V. Aksenova and A. S. Lyakhovnenko
121-122
Letter to the Editor
A convenient method for the synthesis of thiopyrano[4,3-c]quinoline, a new heterocyclic system
N. T. Pokhodylo, V. S. Matiychuk and N. D. Obushak
123-124
Letter to the Editor
A ionic hydrogenation of aryl-substituted 4H-selenopyrans
B. I. Drevko, A. F. Almaeva, I. N. Isaev, V. G. Mandych and I. M. Uchaeva
125
Erratum
X-ray structural analysis of (1R,2R,4S,5S,8S)-2,8-bis(4-chlorophenyl)-4-(4-nitrophenyl)-1-aza-3,7-dioxabicyclo[3,3,0]octane
M. Madesclaire, P. Coudert, V. Gaumet, V. P. Zaitsev and J. V. Zaitseva
126
Erratum
Structural investigation of 1-(N,N-dimethylaminiomethyl)-spirobi(3-oxo-2,5-dioxa-1-silacyclo-pentan)ates
S. Belyakov, N. Erchak, S. Zheimote, M. Fleisher and E. Lukevics