Photodecarboxylative additions of N-protected α-amino acids to N-methylphthalimide
Gallagher, Sonia, Hatoum, Fadi, Zientek, Nicolai, and Oelgemöller, Michael (2010) Photodecarboxylative additions of N-protected α-amino acids to N-methylphthalimide. Tetrahedron Letters, 51 (28). pp. 3639-3641.
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Photoreactions involving N,N-dimethylated α-amino acid salts and N-methylphthalimide are dominated by photoreduction and acetone trapping. Only, N-phenyl glycinate underwent photodecarboxylative addition in a moderate yield of 30%. In contrast, N-acylated α-amino acid salts readily gave addition products in fair to high yields of 20–95%. Comparison experiments with N,N-dimethylacetamide and amino-/amido-containing phthalimides revealed the origin of the crucial electron-transfer step and the reactivity order NR3 » View the MathML source greater-or-equal, slanted RCONR2 was established.
|Item Type:||Article (Refereed Research - C1)|
|Keywords:||photodecarboxylation; phthalimides; photochemistry; amino acids; photoinduced electron transfer|
|FoR Codes:||03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030501 Free Radical Chemistry @ 20%|
03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030503 Organic Chemical Synthesis @ 50%
03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030505 Physical Organic Chemistry @ 30%
|SEO Codes:||97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%|
|Deposited On:||05 May 2011 19:55|
|Last Modified:||22 May 2013 01:30|
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