Synthesis and Crystal Structure Determination of 4’,9’,4-,9-Tetra-t-Butyl- 1’,6’,1-,6-Tetramethoxy-2,5-Dithia3.3 MetabiphenylophaneReportar como inadecuado




Synthesis and Crystal Structure Determination of 4’,9’,4-,9-Tetra-t-Butyl- 1’,6’,1-,6-Tetramethoxy-2,5-Dithia3.3 Metabiphenylophane - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

The title compound 4’,9’,4-,9-tetra-tert-butyl-1’,6’,1-,6-tetramethoxy-2,5-dithia3.3 metabiphenylophane was synthesized as a calixarene like large-sized metacyclophane from the corresponding 3,3’-bischloromethyl-5,5’-bis1,1-dimethylethyl-2,2’-dimethoxy-1,1’-biphenyl and 3,3’-bis mercaptomethyl-5,5’-bis1,1-dimethylethyl-2,2’-dimethoxy-1,1’-biphenyl via an intermolecular condensation reaction. The compound was characterized using 1H NMR spectroscopy and mass spectrometry. Its exact conformational structure was determined via single crystal X-ray diffraction analysis. The compound has quite strained 1,2-alternate like structure because of its two high dihedral angled and rigid biphenyl parts in the crystal. The crystal includes the two isomers as two different 1,2-alternate like conformers, and the ratio of the two isomers is 78:22.

KEYWORDS

Crystal Structure, Metabiphenylcyclophane, 1, 2-Alternate Conformers

Cite this paper

Moriguchi, T. , Egami, T. , Yakeya, D. , Jalli, V. , Yoza, K. and Tsuge, A. 2016 Synthesis and Crystal Structure Determination of 4’,9’,4-,9-Tetra-t-Butyl- 1’,6’,1-,6-Tetramethoxy-2,5-Dithia3.3 Metabiphenylophane. Crystal Structure Theory and Applications, 5, 56-62. doi: 10.4236-csta.2016.53005.





Autor: Tetsuji Moriguchi1*, Tatsuya Egami1, Daisuke Yakeya1, Venkataprasad Jalli1, Kenji Yoza2, Akihiko Tsuge1

Fuente: http://www.scirp.org/



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