Iodine oxidation of 2-alkyl-1,4-naphthoquinones (1) in the presence of substituted pyridines (2) afforded naphtho[2,3-b]indolizine-6,11-dione derivatives (3). Other oxidant systems (MnO2/I- or Fe(ClO4)3/I2) can be used and 2-alkylbenzoquinones reacted in lower yield. Iodination of 3 by I2 and dibenzoyl peroxide occurred seelctively at position 12
Synthesis of naphtho[2,3-b]indolizine-6,11-dione derivatives by iodine oxidation of 2-alkyl-1,4-naphthoquinones in the presence of substituted pyridines
CITTERIO, ATTILIO;MARION, ANTONIO PIO MARIA;MELE, ANDREA;SEBASTIANO, ROBERTO;
1998-01-01
Abstract
Iodine oxidation of 2-alkyl-1,4-naphthoquinones (1) in the presence of substituted pyridines (2) afforded naphtho[2,3-b]indolizine-6,11-dione derivatives (3). Other oxidant systems (MnO2/I- or Fe(ClO4)3/I2) can be used and 2-alkylbenzoquinones reacted in lower yield. Iodination of 3 by I2 and dibenzoyl peroxide occurred seelctively at position 12File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
521445.pdf
Accesso riservato
:
Altro materiale allegato
Dimensione
2.85 MB
Formato
Adobe PDF
|
2.85 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
