First synthesis of naturally occurring (
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Shi-Long Zheng; Wing-Yiu Yu; Ming-Xia Xu; Chi-Ming Che
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Article
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2003
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Elsevier Science
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French
โ 96 KB
ยฑ)-epi-Conocarpan 1 was synthesized via the key intermediate 5-bromo-cis-2-(4-methoxyphenyl)-3-methyl-2,3-dihydrobenzofuran 6 which was synthesized by a ruthenium(II) porphyrin-catalyzed intramolecular C-H insertion reaction using aryl tosylhydrazone salt 5 as the carbene source, starting from the c