2-(3-cyano-5-dimethyl-5-(trifluoromethyl)furan-2(5H)-ylidene)malononitrile 、 (E,E)-6-(4,5-dimethyl-1,3-dithiol-2-ylidene)hexa-2,4-dienal 在
吡啶 、
溶剂黄146 作用下,
以
乙醇 为溶剂,
以36%的产率得到2-{(1E,3E,5E)-3-cyano-4-[7-(4,5-dimethyl-1,3-dithiol-2-ylidene)hepta-1,3,5-trienyl]-5-methyl-5-trifluoromethylfuran-2(5H)-ylidene}malononitrile