1. SYNTHESIS AND STEREOCHEMISTRY OF SOME NEW 1,3-OXATHIANES OBTAINED FROM 1,4-DIMERCAPTOTHREITOL. Authors: LUMINIŢA MUNTEAN, IOANA GEORGETA GROSU, DORA DEMETER, NICULINA BOGDAN, SORIN MAGER.2. SYNTHESIS AND STEREOCHEMISTRY OF SOME NEW 2,4-SUBSTITUTED-1,3-DIOXANES. Authors: ANAMARIA TEREC, LUMINIŢA MUNTEAN, STEFANIA TOTOS, NICULINA BOGDAN, CARMEN FLORIAN, DRAGOŞ MARGINEANU, S. MAGER, I. GROSU.3. SYNTHESIS AND STRUCTURAL ANALYSIS OF SOME NEW PRECURSORS OF MACROCYCLIC CYCLOPHANES: 1,4-BIS (2-R-5,5-DIMETHYL-1,3-DIOXAN-2-YL) BENZENE. Authors: ION GROSU, LUMINIŢA DAVID, ANAMARIA TEREC, ELENA BOGDAN, ANDREI ŞERBAN GÂZ, FLAVIA POP, NICULINA BOGDAN.4. SYNTHESIS AND STRUCTURAL ANALYSIS OF SOME NEW PRECURSORS OF MACROCYCLIC CYCLOPHANES: 1,4-BIS (2-R-5-R1-1,3-DIOXAN-2-YL) BENZENE DERIVATIVES. Authors: NICULINA BOGDAN, ANDREI ŞERBAN GÂZ, FLAVIA POP, ELENA BOGDAN, ANAMARIA TEREC, LUMINIŢA DAVID, ION GROSU.