SYNTHESIS OF LARGERING COMPOUNDS VIA INTRAMOLECULAR PHOTOCYCLOADDITION OF BICHROMOPHORIC COMPOUNDS WITHIN REACTION CAVITIES IN LOW-DENSITY POLYETHYLENE FILMS

doi:10.7517/j.issn.1674-0475.1999.03.193

Abstract

Abstract: The construction of macrocyclic compounds continues to be an important topic in synthetic organic chemistry^[1]. A molecule with two reactive groups separated by a flexible link may undergo either intramolecular or intermolecular reactions. Intramolecular reaction gives macrocyclic ring-closure products, while intermolecular reaction results in dimers, oligomers and polymers. Thus, cyclization suffers from the competition from intermolecular reactions and occurs in good chemical yields only at very low concentrations.

Key words: low-density polyethylene, photocycloaddition, tetraand penta (ethylene glycol) terminated by 2-naphthoyl groups

YUAN Zhenyu, WU Lizhu, TONG Zhenhe(Chen Ho Tung), Richard G. Weiss. SYNTHESIS OF LARGERING COMPOUNDS VIA INTRAMOLECULAR PHOTOCYCLOADDITION OF BICHROMOPHORIC COMPOUNDS WITHIN REACTION CAVITIES IN LOW-DENSITY POLYETHYLENE FILMS[J]. Imaging Science and Photochemistry, 1999, 17(3): 193-198.

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