Abstract
UV photolysis of protected glycines in the presence of di-tert-butyl peroxide, benzophenone and substituted toluenes is shown to lead to selective alkylation at the a-position. Phenylalanines are isolated in yields of generally > 50% (based on recovered starting material). (C) 2000 Elsevier Science Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 7121-7124 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 41 |
Issue number | 36 |
Publication status | Published - 2 Sept 2000 |
Keywords
- radicals and radical reactions
- amino acids and derivatives
- photochemistry
- alkylation
- ALPHA-AMINO-ACIDS
- PHOTOALKYLATION
- DERIVATIVES
- RADICALS