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22nd August 2013 @ 13:40

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Reaction information

*#Reaction file  
Scheme_117h.cdx
*Reaction file type CDX
*Procedure  

General procedure B (see below) with 4-Methyl-N-(4-phenylbut-3-yn-1-yl)benzenesulfonamide  (1.50 g, 5.0 mmol) and (Bromoethynyl)trimethylsilane (886 mg, 5.0 mmol).  Purification by column chromatography (SiO2, hexane/Et2O 4:1) gave the title compound as a yellow solid (930 mg, 47%).

 

 

General procedure B:

A solution of the appropriate bromide (1 eq.) and N,N‑dimethylethylenediamine (0.2 eq.) in dry toluene (20 mL) was added to the appropriate sulfonamide (1 eq.), K3PO4 (2 eq.) and CuI (0.05 eq.) in toluene (10.0 mL).  The reaction mixture was heated to reflux for 16 h.  The reaction mixture was filtered through a plug of silica using ether to elute and the solvent removed in vacuo to give the crude product, which was purified as described.

*Yield (%)  47
*Type of Yield Isolated product yield
Reference(s)  
AH Thesis_2011_pp93.pdf
AH Thesis_2011_pp176-223.pdf
Further information  Compound 117h: 4-Methyl-N-(4-phenylbut-3-yn-1-yl)-N-((trimethylsilyl)ethynyl)benzenesulfonamide

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Overall reaction? True
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Attached Files
AH Thesis_2011_pp93.pdf
Scheme_117h.cdx
AH Thesis_2011_pp176-223.pdf