Facile chelation-controlled reductive opening of methoxybenzylidene acetals with Bu3SnH and MgBr2. Regioselective protection strategy as MPM ethers
Autor: | Hiroo Dei, Osamu Yonemitsu, Megumi Yamauchi, Shin-ichi Kusaka, Bao‐Zhong Zheng, Katsuya Matsui |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 41:6441-6445 |
ISSN: | 0040-4039 |
DOI: | 10.1016/s0040-4039(00)01017-0 |
Popis: | A mild and efficient regioselective reductive opening of methoxybenzylidene acetals using a combination of Bu 3 SnH and MgBr 2 ·OEt 2 , mainly via five-membered chelation intermediates is described. This reaction was applied to synthetic intermediates of myriaporon and tedanolide. |
Databáze: | OpenAIRE |
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