An Efficient Preparation of 1,2-Bis(Dipyrrin-9-Ylene)-Ethane,the First Fully Conjugated b-Homobilin |
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| Authors: | Qingqi Chen Bingzi Chen Xiaoli Li |
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| Institution: | 1. Department of Chemistry , University of British Columbia , 2036 Main Mall, Vancouver, BC, Canada , V6T 1Z1 E-mail: qchen@chem.ubc.ca;2. Department of Chemistry , Peking University , Beijing, 100871, China;3. Department of Chemistry , Changchun Normal College , Changchun, China |
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| Abstract: | 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 1,2-bispyrrylethane 3 with 2 molecular 5-formylpyrrole 4, followed by dehydration of the result 1,2-Bis(dipyrrin-9-yl)-ethane 2 with DDQ in dichloromethane. The chemical and spectroscopic properties of this novel chromophoric system are discussed. |
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| Keywords: | acetylenic ester dipotassium hydrogen phosphate N‐vinyl imides solvent‐free conditions |
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