Tetrahedron Letters p. 3537 - 3540 (1998)
Update date:2022-08-03
Topics:
Furusho, Yoshio
Kawasaki, Hiroaki
Nakanishi, Saburo
Aida, Takuzo
Takata, Toshikazu
Five possible N-methylated and N-monoethylated meso- octaethylporphyrinogens were prepared by N-alkylation of lithiated meso- octaethylporphyrinogens with alkyl iodides in the presence of crown ether. The crystal structure of 3b was established by X-ray crystal structure analysis.
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