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A new route to tetrahydrofurofurane lignans 8 is present, which starts with substituted benzoate following a 7 step syntheses, and is distinctly shorter, more economic and efficient than any of the previous approaches to the target reported in the literature. The key step to establish the first furane ring 2 benefits the remarkable ease of the Diels-Alder reaction of 2,4-diaryloxazole 1 with 2-butyne-l$diol diacetate.

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1,2-Bis(dipyrrin-9-ylene)ethane 1, the first fully conjugated b-homobilin, was synthesized in two steps with excellent yield by first condensing I .2-bispyrrylethane 3 with 2 molecular 5-formylpyrrole 4, followed by dehydration of the rewlt 1.2-Bis(dipyrrin-9-yl)-ethane 2 with DDQ in dichloromethane. The chemical and spectroscopic properties of this novel chromophoric system are discussed.