THE AZIRIDINE MOIETY REPRESENTS ONE OF THE MOST VALUABLE THREE MEMBERED RING SYSTEMS IN ORGANIC CHEMISTRY AND THE REGIOCONTROLLED RING OPENING OF C-SUBSTITUTED AZIRIDINES CONSTITUTES A POWERFUL APPROACH TOWARD THE PREPARATION OF A LARGE VARIETY OF FUNCTIONALIZED NITROGEN-CONTAINING TARGET COMPOUNDS [1]. WIDE VARIETIES OF METHODS HAVE BEEN REPORTED FOR RING OPENING OF THE AZIRIDINES, BUT THERE ARE A FEW METHODS FOR RING OPENING OF 1, 2-DIAROYL-3-ARYLAZIRIDINES [2]. IN CONTINUATION OF OUR EFFORTS IN THE DEVELOPMENT AND SYNTHESIS OF NEW COMPOUNDS FROM KETOAZIRIDINES [3–4], WE HAVE DISCOVERED A NEW AND SIMPLE ONE-POT METHOD FOR THE RING OPENING OF TRANS-1, 2-DIAROYL-3-ARYLAZIRIDINES BY A REGIO-CONTROLLED REACTION WITH ISOTHIOCYANATE.

IN RECENT YEARS, HETEROGENIZATION OF ORGAN OCATALYTIC SYSTEMS HAS BEEN ACHIEVED BY IMMOBILIZATION OF HOMOGENEOUS CATALYSTS ON VARIOUS TYPES OF ORGANIC AND INORGANIC SUPPORTS. ONE OF THIS SURFACE THAT ACT AS A SUPPORT IS CELLULOSE. CELLULOSE, BEING THE MOST ABUNDANT NATURALLY OCCURRING POLYMER ON EARTH, IS A HIGHLY INTERESTING MATERIAL DUE TO ITS RENEWABILITY, LOW PRICE, HIGH AVAILABILITY, AND GOOD MECHANICAL PROPERTIES. THE INTEREST IN CELLULOSE HAS REAWAKENED DUE TO THE CONCERN FOR THE ENVIRONMENTAL IMPACT OF SYNTHETIC POLYMERS AND FIBRES, AND AS THE PRICE OF THE RAW MATERIAL FOR PRODUCTION OF SYNTHETIC POLYMERS IS RAPIDLY INCREASING. SINCE CELLULOSE IS BOTH BIORENEWABLE AND BIODEGRADABLE, SEVERAL STUDIES HAVE FOCUSED ON THE MODIFICATION OF CELLULOSE, TO INVESTIGATE IT AS A REPLACEMENT MATERIAL FOR SYNTHETIC POLYMERS [1,2].EPOXIDES ARE IMPORTANT CLASS OF INDUSTRIAL CHEMICALS THAT HAVE BEEN USED AS CHEMICAL INTERMEDIATES AND CAN BE OPENED UNDER A VARIETY OF CONDITIONS [4].IN THIS WORK, THE CATALYTIC ACTIVITY OF MN (SALEN) AND MN (SALEN)-CELLULOSE IN THE NUCLEOPHILIC RING-OPENING OF EPOXIDES AND IN THE ETOH AS SOLVENT WITH KSCN, NASCN AND THIOUREA AS NUCLEOPHIL IS REPORTED.

POLYMERIC MACROMONOMERS ARE CONTAINING ONE OR MORE POLYMERIZABLEFUNCTIONAL GROUPS, WHICH ARE TYPICALLY LOCATED AT THE CHAIN END (S) OR SIDE CHAIN. THEY CAN BE POLYMERIZED WITHLOW MOLECULAR WEIGHT MONOMERS TO GENERATE BRUSH-LIKE [1] AND COMPLEX STRUCTURES SUCH ASGRAFT COPOLYMERS, STAR POLYMERS, AND DENDRONIZED POLYMERS [2]……

ENZYME-CATALYZED POLYMERIZATION REACTIONS IN ORGANIC SOLVENTS HAVE BEEN IMPORTANT IN ORGANIC SYNTHESIS AND HAS BEEN PROVEN TO BE A NEW METHODOLOGY IN POLYMER SYNTHESIS [1]. CHARACTERISTIC FEATURES OF ENZYME CATALYSIS AFFORDED NOVEL POLYMERIZATION REACTIONS TO PRODUCE POLYMERS, WHICH ARE....

THE STRAINED SILA-[1]FERROCENOPHANE MONOMER FE(C5H8)2SIMETHYLVINYL 5 WAS SYNTHESIZED AND THEN POLYMERIZED VIA PHOTOLYTIC LIVING ANIONIC RING-OPENING POLYMERIZATION (ROP) WITH NACP, ANIONIC RING-OPENING POLYMERIZATION WITH N-BULI, TRANSITION METAL-CATALYZED AND THERMAL RING-OPENING POLYMERIZATION (ROP) TO GIVE THE SOLUTION [FE(C5H8)2SIMETHYLVINYL]N 6. BOTH MONOMER 5 AND POLYMER 6 WAS STRUCTURALLY CHARACTERIZED BY H-NMR SPECTROSCOPY. MOLECULAR WEIGHT OF POLYMER WAS MEASURED BY GPC AND THERMAL ANALYSES OF MONOMER WAS OBTAINED BY DSC.

BACKGROUND: TIO2-CMK-8 CATALYSIS THE RING-OPENING OF EPOXIDES WITH ACYL HALIDES AFFORDING THE CORRESPOND 2-HALOALKYL ESTERS [1]. TRANSFORMATION OF EPOXIDES TO 1, 2-DISUBSTITUTED ALKANES IS ONE OF THE IMPORTANT PROCESSES IN ORGANIC SYNTHESES, AND EXTENSIVE STUDIES ON THE REGIO- AND STEREOCHEMISTRY OF THE RING-OPENING REACTION OF EPOXIDES WITH SEVERAL NUCLEOPHILES CATALYZED BY TRANSITION METALS HAVE BEEN REPORTED. …