The Conformation of trans 1,2-Bis[5-(substituted phenyl)-oxazol-2-yl]ethylene

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (10): 1255.

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The Conformation of trans 1,2-Bis[5-(substituted phenyl)-oxazol-2-yl]ethylene

XUE Jie-You¹, ZHANG Wen-Qin¹, WANG Ming-Zhen¹, LI Hui-Jie¹, GAO Zhen-Heng¹, LU Xiang-Jun², LIN Shao-Fan²

1. Department of Chemistry, Nankai University, Tianjin, 300071;
2. Centre Laboratory, Nankai University, Tianjin, 300071

Received:1991-11-11 Revised:1992-04-13 Online:1992-10-24 Published:1992-10-24

Abstract

Abstract: Trans -1,2-bis[5-(2,4,6-trimethylphenyl)oxazol-2-yl]ethylene has been synthesized.The calculation of molecular mechanic force field (MMX program) for POEOP,2,5-dirnethyl-POEOP and 2,4,6-trimethyl-POEOPhas been performed.The structural parameters of POEOPdetermined consist with the MMXcalculation.Both two oxazole ring moieties are arranged in an-ti conformation which is stable than the syn one by 4.6 kJ/mol and the rotation energy barrier is ca.lculation 20.9 kj/mol.Besides,the relationship between the conformation and UVspectra of POEOPsystem has been discussed.

Key words: Bis[5-(substituted phenyl)oxazol-2-yl]ethylene, Conformation, Rotation energy barrier, MMX calculation

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XUE Jie-You, ZHANG Wen-Qin, WANG Ming-Zhen, LI Hui-Jie, GAO Zhen-Heng, LU Xiang-Jun, LIN Shao-Fan. The Conformation of trans 1,2-Bis[5-(substituted phenyl)-oxazol-2-yl]ethylene[J]. Chem. J. Chinese Universities, 1992, 13(10): 1255.

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The Conformation of trans 1,2-Bis[5-(substituted phenyl)-oxazol-2-yl]ethylene

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