Synthesis of new furopyrans and angularly fused furopyranochromenes from 3-arylmethylidenefuran-2-ones
摘要:
Reactions of 5-aryl-3-arylmethylidenefuran-2-ones with malononitrile gave 6-amino-2,4-diaryl-4Hfuro[2,3-b]pyran-5-carbonitriles and 2-aryl-5-imino-5H,11bH-furo[3',2': 5,6]pyrano[3,4-c]chromen-6-amines as potentially biologically active substances.
Arylmethylene-3H-furan(pyrrol)-2-ones in reactions of [3+2]-cycloaddition with activated hydrazones
作者:I. E. Kamneva、A. Yu. Egorova、A. B. Trankovskii
DOI:10.1134/s1070428014050078
日期:2014.5
Spiropyrrolidine derivatives were synthesized for the first time by [3+2]-cycloaddition of 3-arylmethylene-3H-furan(pyrrol)-2-ones to N-benzylidenebenzylamine activated by the system AcOAg-Et3N. The reaction route and the spectral characteristics of the first obtained compounds have been discussed.
Synthesis of angular trioxacyclo-pentaphenanthrenes by the reaction of substituted 2-furanones with malonic acid dinitrile