Criterii căutate


Sumarul căutării

  • 10 articole
Tip Anul Publicație și Volum/Nr. Realizatori Titlul articolui Secțiunea Pagina Limba
articol de periodic 1967 Revue Roumaine de Chimie, 12-7 FĂRCAȘIU, D. (autor) , UNCUȚA, Cornelia (autor) , BALABAN, Alexandru (autor) Pyrylium salts obtained by diacylation of olefins. XVII. Acylations with acid chlorides catalyzed by perchloric acid 899-803
articol de periodic 1973 Revue Roumaine de Chimie, 18-7 IȘFAN, Elena (autor) , UNCUȚA, Cornelia (autor) , BARABAS, A. (autor) Beryllium-(3.acyl-2,4-pentanedionates) 1233-1241
articol de periodic 1976 Revue Roumaine de Chimie, 21-2 UNCUȚA, Cornelia (autor) , BALABAN, Alexandru (autor) Reaction of pyrylium salts with nucleophiles XI. Chemical shift non-equivalence of isopropyl in atropisomeric 1-aryl-2-isopropyl-4,6-dimethyl-pyridinium salts 251-255
articol de periodic 1977 Revue Roumaine de Chimie, 22-9-10 STĂNOIU, Ileana (autor) , GÎRD, Eugenia (autor) , UNCUȚA, Cornelia (autor) , CHIRALEU, Filip (autor) , BALABAN, Alexandru (autor) Isotopic exchange of active methyl hydrogens. IX. Intramolecular kinetic comparison between &-methyl and &-isopropyl groups in pyrylium salts 1359-1361
articol de periodic 1979 Revue Roumaine de Chimie, 24-1 STĂNOIU, Ileana (autor) , GÎRD, Eugenia (autor) , UNCUȚA, Cornelia (autor) , CHIRALEU, Filip (autor) , BALABAN, Alexandru (autor) Isotopic exchange of active methyl hydrogens. XII. Kinetics of deuteriation and de-deuteriation of &-and y-ethyl groups and relative rates for ethyl versus methyl side-chains, in pyrylium salts 209-217
articol de periodic 1984 Revue Roumaine de Chimie, 29-1 UNCUȚA, Cornelia (autor) , BALLY, Ioana (autor) , DRĂGHICI, Constantin (autor) , CHIRALEU, Filip (autor) Heterocyclic organoboron compounds. XVII. Axial chirality of boron vhelates evidenced by H-NMR spectroscopy in the presence of chiral additives 121-129
articol de periodic 1988 Revue Roumaine de Chimie, 33-7 UNCUȚA, Cornelia (autor) , GHEORGHE, Mircea (autor) , CHIRALEU, Filip (autor) , PLĂVEȚI, Marieta (autor) , ELIAN, Mihai (autor) , BALABAN, Alexandru (autor) Reaction of pyrylium salts with nucleophiles. XXI. Unexpercted formation of 6,6-dimethyl-5-isopropyl-2,4-cyclohexadienylidene-1-imines from primary amines and 2,6-diisopropyl-pyrylium salts 717-727
articol de periodic 1989 Revue Roumaine de Chimie, 34-6 UNCUȚA, Cornelia (autor) , BALABAN, Teodor (autor) , PETRIDE, Aurica (autor) , CHIRALEU, Filip (autor) , BALABAN, Alexandru (autor) Reaction of pyrylium salts with nucleophiles. XXII. Regioselectivity (formation of anilinederivatives from primary amines and non-symmetrically substituted pyrylium salts) and chemoselectivity (pyridinum vs. Anuline formation) 1425-1437
articol de periodic 1990 Revue Roumaine de Chimie, 35-3 UNCUȚA, Cornelia (autor) , CHIRALEU, Filip (autor) , GHEORGHIU, Mircea (autor) , BALABAN, Alexandru (autor) Reactions of pyrylium salts with necleophiles. XV. Stereoisomers of polyarxlppyridinium salts and their interconversion 323-338
articol de periodic 1970 Studii și Cercetări de Chimie, 18-2 UNCUȚA, Cornelia (autor) , BALABAN, Alexandru (autor) Metode de degradare chimică cu ruperea legăturilor pentru localizarea marcării cu carbon-14 161-188