Abstract
The Wittig–Horner reaction of protected 3-formylindazoles 1 with (±)-N-(benzyloxycarbonyl)-α-phosphonoglycine trimethyl ester 2 has been developed as a new practical synthesis of dehydro 2-azatryptophans and amino acid derivatives. The preparation of 5-bromo-3-formylindazole is discussed.
Originalsprog | Engelsk |
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Tidsskrift | Tetrahedron Letters |
Vol/bind | 48 |
Udgave nummer | 14 |
Sider (fra-til) | 2457-2460 |
ISSN | 0040-4039 |
DOI | |
Status | Udgivet - 15 feb. 2007 |
Udgivet eksternt | Ja |