A synthetic route to 1,3-dihydroisobenzofuran natural products: the synthesis of methyl ethers of pestacin
摘要:
A synthetic route to 1-(2,6-dihydroxyphenyl)phthalan natural products is described. It is typified by the synthesis of permethyl and monomethyl ethers (21 and 22) of pestacin (1), a 1,3-dihydroisobenzofuran natural product. The key step is hydrodeoxygenation of the corresponding isobenzofuranone 19 in 2 steps: reduction and intramolecular etherification. A route involving hydrodesulfurization of a thionophthalide to a phthalan (e.g., 8) is also reported. (C) 2009 Elsevier Ltd. All rights reserved.
A synthetic route to 1,3-dihydroisobenzofuran natural products: the synthesis of methyl ethers of pestacin
摘要:
A synthetic route to 1-(2,6-dihydroxyphenyl)phthalan natural products is described. It is typified by the synthesis of permethyl and monomethyl ethers (21 and 22) of pestacin (1), a 1,3-dihydroisobenzofuran natural product. The key step is hydrodeoxygenation of the corresponding isobenzofuranone 19 in 2 steps: reduction and intramolecular etherification. A route involving hydrodesulfurization of a thionophthalide to a phthalan (e.g., 8) is also reported. (C) 2009 Elsevier Ltd. All rights reserved.
A synthetic route to 1,3-dihydroisobenzofuran natural products: the synthesis of methyl ethers of pestacin
作者:Raju Karmakar、Pallab Pahari、Dipakranjan Mal
DOI:10.1016/j.tetlet.2009.04.079
日期:2009.7
A synthetic route to 1-(2,6-dihydroxyphenyl)phthalan natural products is described. It is typified by the synthesis of permethyl and monomethyl ethers (21 and 22) of pestacin (1), a 1,3-dihydroisobenzofuran natural product. The key step is hydrodeoxygenation of the corresponding isobenzofuranone 19 in 2 steps: reduction and intramolecular etherification. A route involving hydrodesulfurization of a thionophthalide to a phthalan (e.g., 8) is also reported. (C) 2009 Elsevier Ltd. All rights reserved.