ADDITION PRODUCTS OF MALEIC ANHYDRIDE TO PHOSPHORUS-AND NITROGEN-CONTAINING FURAN DERIVATIVES

Abstract

Diels-Alder reaction between maleic anhydride and phosphorus-, nitrogen-and difuryl-containing compounds was carried out giving two new bis-adducts: 1,4-bis{N-methyl(diethoxyphosphonyl)-1-[4,10-dioxa,-3,5-dioxo-tricyclo[5,2,1,0]ec-8-en-1-yl]}diaminobenzene and 4,4′-bis{N-methyl(diethoxyphosphonyl)-1-[4,10-dioxa-3,5-dioxo-tricyclo-[5,2,1,0]ec-8-en-1-yl]}diaminodiphenylmethane. The structure of the compounds was confirmed by Ir-, ¹H-and ³¹P-NMR-spectra. TLC-data are also presented.

Key Words:

• Diels-Alder reaction
• maleic anhydride
• furan derivatives
• phosphonic acid esters
• NMR
• TLC