کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1327811 | 977506 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterisation of two new binaphthyl trisilanes Synthesis and characterisation of two new binaphthyl trisilanes](/preview/png/1327811.png)
The synthesis and characterisation of two binaphthyl trisilanes is described. Reaction between 2,2′-dilithio-1,1′-binaphthyl and 1,3-dichlorohexamethyltrisilane gave 3,3,4,4,5,5-hexamethyl-4,5-dihydro-3H-3,4,5-trisilacyclohepta[2,1-a;4,3-a′]binaphthalene (3). Compound 3 was characterised by 1H, 13C and 29Si NMR spectroscopy and a crystal structure analysis. Reaction between 2,2′-dilithio-1,1′-binaphthyl and 1,3-bis(trifluoromethanesulfonyloxy)-1,1,2,3,3-pentamethyltrisilane, generated in situ by treatment of 1,3-diphenyl-1,1,2,3,3-pentamethyltrisilane with trifluormethanesulfonic acid, gave 3,3,4,5,5-pentamethyl-4,5-dihydro-3H-3,4,5-trisilacyclohepta[2,1-a;4,3-a′]binaphthalene (7). Analysis by 1H, 13C and 29Si NMR spectroscopy revealed that 7 had a very similar structure to 3.
The synthesis of two binaphthyl trisilanes is described. They have been characterised by 1H, 13C and 29Si NMR spectroscopy, and also by a crystal structure analysis for one of the compounds.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 694, Issue 1, 1 January 2009, Pages 137–141