Abstmc Treatments of 3-akylthio-S-aryl-2-~~um halides with sodium bomb&i& in a mixtmofethandandchlarofolmat-73c~tbecanepondine3-uMubstiMed4-~h exdentyields. Recently 4-isoxazdhes have meived codkrable attention paztly because of the mechenistic intacsta m tl&thexmal~onsdpoten~innewsyn~methotlfarheta
Total Synthesis of Six 3,4-Unsubstituted Coumarins
β Scribed by Gao, Wenqing; Li, Qingyong; Chen, Jian; Wang, Zhichao; Hua, Changlong
- Book ID
- 121423363
- Publisher
- Molecular Diversity Preservation International
- Year
- 2013
- Tongue
- English
- Weight
- 235 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1420-3049
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## Abstract magnified image Various 1,3βdimethyl and 1βmethylβ3βphenylfuro[3,4β__c__]coumarins (**5aβh** and **6aβh**) have been synthesized by demethylation cyclization of the respective 3βarylβ4βethoxycarbonyl furans (**3aβh** and **4aβh**). These ethoxycarbonyl furans were prepared by reacting