AAAAAA
Results: 1-25/27
Authors:
Covaci, IC
Constantinescu, T
Caproiu, MT
Caldararu, H
Ionita, P
Balaban, AT
Citation: Ic. Covaci et al., New congeners of 1-picryl-2-phenyl-2-(para-picramidophenyl)-diazenium betaine whose picramido groups are replaced by 4-cyano-2,6-dinitrophenyl analogs, POL J CHEM, 75(10), 2001, pp. 1427-1440
Authors:
Spafiu, F
Tudor, E
Popa, V
Constantinescu, T
Stanciuc, A
Luca, C
Citation: F. Spafiu et al., Gas chromatographic studies using glass capillary columns with naphtyl-azobenzo-crown ethers and related compounds as stationary phases. 2 - Thermal behaviour and distribution mechanisms, REV RO CHIM, 46(1), 2001, pp. 19-30
Authors:
Constantinescu, T
Gheondea, A
Citation: T. Constantinescu et A. Gheondea, Representations of hermitian kernels by means of Krein spaces. II. Invariant kernels, COMM MATH P, 216(2), 2001, pp. 409-430
Authors:
Covaci, IC
Constantinescu, T
Caproiu, MT
Luca, C
Balaban, AT
Citation: Ic. Covaci et al., Solid supramolecular complexes of potassium salts of N-methoxynitroanilinederivatives and methoxyamino-3,5-dinitropyridine with 18-crown-6 ether, EUR J ORG C, (21), 2000, pp. 3569-3573
Authors:
Constantinescu, T
Gheondea, A
Citation: T. Constantinescu et A. Gheondea, Invariant Hermitian kernels and their Kolmogorov decompositions, CR AC S I, 331(10), 2000, pp. 797-802
Authors:
Nourescu, D
Maior, O
Caproiu, MT
Vasilescu, M
Pencu, GI
Luca, C
Socoteanu, R
Mischie, A
Constantinescu, T
Citation: D. Nourescu et al., Phase transfer catalysed O-alkylation of estrogen hormones. Fluorescent derivatives, REV RO CHIM, 45(9), 2000, pp. 887-894
Authors:
Nourescu, D
Luca, C
Caproiu, MT
Pencu, GI
Constantinescu, T
Citation: D. Nourescu et al., Obtainment of 17 beta-estradiol or 17 beta-estradiol-17 alpha-deuterium through stereoselective reduction of estrone, using NaBH4 and LiBD4 respectively in the presence of a crown ether, REV RO CHIM, 45(6), 2000, pp. 531-535
Authors:
Olteanu, M
Geadau, S
Zarna, A
Constantinescu, T
Citation: M. Olteanu et al., Supramolecular structures at the liquid/liquid interface. I. Association of 18-crown-6 and N-methoxy-picramide with bovine serum albumin in H2O/CH2Cl2 diphasic system, REV RO CHIM, 45(4), 2000, pp. 369-374
Authors:
Hristea, EN
Hillebrand, M
Radutiu, AC
Caldararu, H
Caproiu, MT
Ionita, P
Constantinescu, T
Balaban, AT
Citation: En. Hristea et al., Reaction of 1,1-diphenyl-2-picryl-hydrazyl or -hydrazine with sodium borohydride in the presence of 18-crown-6 ether, REV RO CHIM, 45(12), 2000, pp. 1089-1096
Authors:
Constantinescu, T
Gheondea, A
Citation: T. Constantinescu et A. Gheondea, The Schur algorithm and coefficient characterizations for generalized Schur functions, P AM MATH S, 128(9), 2000, pp. 2705-2713
Authors:
Caproiu, MT
Covaci, IC
Ionita, P
Luca, C
Constantinescu, T
Balaban, AT
Citation: Mt. Caproiu et al., Regioselectively [(NO2)-N-15]-labeled N-methoxypicramide and DPPH preparedby using crown ether and solid sodium [N-15]nitrite, J RAD NUCL, 242(3), 1999, pp. 773-776
Authors:
Covaci, IC
Constantinescu, T
Ionita, P
Caproiu, MT
Zarna, N
Luca, C
Balaban, AT
Citation: Ic. Covaci et al., A new nitration process of N-methoxy-dinitroaniline and triarylhydrazine derivatives with sodium nitrite in the presence of crown ethers, REV RO CHIM, 44(9), 1999, pp. 823-829
Authors:
Covaci, I
Constantinescu, T
Caproiu, MT
Dumitrascu, F
Luca, C
Balaban, AT
Citation: I. Covaci et al., New N-methoxy-dinitro-aniline derivatives: Synthesis, structure and pK(a) values, REV RO CHIM, 44(6), 1999, pp. 531-537
Authors:
Zarna, A
Luca, C
Constantinescu, T
Citation: A. Zarna et al., Liquid membrane type models, containing [18-crown-6...I](+) I-3(-) complexspecies, for conducting iodination and oxidation processes, REV RO CHIM, 44(5), 1999, pp. 449-453
Authors:
Ionita, P
Spafiu, F
Constantinescu, T
Caldararu, H
Citation: P. Ionita et al., The reaction of 2,2-diphenyl-1-picrylhydrazyl stable free radical with sodium tetra-phenylborate in the presence of 18-C-6 crown ether, REV RO CHIM, 44(5), 1999, pp. 497-500
Authors:
Covaci, IC
Constantinescu, T
Caproiu, MT
Draghici, C
Ionita, P
Luca, C
Stanciuc, G
Maganu, M
Balaban, AT
Citation: Ic. Covaci et al., 3,5-dinitro-4-methoxyaminobenzoic acid and its derivatives, REV RO CHIM, 44(4), 1999, pp. 333-340
Authors:
Badea, F
Stoica, A
Ionita, P
Caproiu, MT
Constantinescu, T
Citation: F. Badea et al., Nitration of some di- and tri-nitrohalobenzenes with solid sodium nitrite in the presence of 18 crown 6, REV RO CHIM, 44(4), 1999, pp. 351-356
Authors:
Ionita, P
Constantinescu, T
Caldararu, H
Luca, C
Caproiu, MT
Dumitrascu, F
Silberg, I
Balaban, AT
Citation: P. Ionita et al., The reaction between the DPPH free radical and KCN in the presence of crown ether 18-C-6 - A correction, REV RO CHIM, 44(4), 1999, pp. 393-396
Authors:
Zarna, A
Luca, C
Constantinescu, T
Citation: A. Zarna et al., Mimicking redox processes and redox-iodination competitive processes in liquid membrane type systems, in the presence of 18-crown-6 macrocyclic ligand, REV RO CHIM, 44(3), 1999, pp. 213-216
Authors:
Luca, C
Nourescu, D
Caproiu, MT
Pencu, GI
Constantinescu, T
Citation: C. Luca et al., The behaviour of some estrogens in the nitration process. II. A comparative study of 18-crown-6-ether effect on estrone nitration with NO2, NO2+, HNO2 and NO2- species, REV RO CHIM, 44(2), 1999, pp. 147-153
Authors:
Luca, C
Ionita, P
Constantinescu, T
Citation: C. Luca et al., Interphase processes involving hydrazine derivatives. X - The active transport of potassium, arginine, protons and electrons through bulk liquid membranes, REV RO CHIM, 44(1), 1999, pp. 39-44
Authors:
Luca, C
Nourescu, D
Caproiu, MT
Pencu, GI
Constantinescu, T
Citation: C. Luca et al., The behaviour of some estrogens in nitration process - I. Estrone nitration with NaNO2 in the presence of crown ethers, REV RO CHIM, 43(9), 1998, pp. 855-860
Authors:
Luca, C
Ionita, P
Popa, E
Constantinescu, T
Citation: C. Luca et al., Interphase processes involving hydrazine derivatives. VIII. Transfer of alkali cations by means of crown ethers and some hydrazine derivatives, REV RO CHIM, 43(8), 1998, pp. 753-756
Authors:
Luca, C
Zarna, A
Constantinescu, T
Citation: C. Luca et al., Study of complex forming process between iodine and macrocycles of 18-crown-6 type, in a liquid/liquid two-phase system, REV RO CHIM, 43(7), 1998, pp. 597-600
Authors:
Luca, C
Ionita, P
Popescu, DO
Constantinescu, T
Citation: C. Luca et al., Interphase processes involving hydrazine derivatives. IX - The influence of anion pair upon the extraction of some cations and of arginine by means of crown ethers, REV RO CHIM, 43(6), 1998, pp. 541-544