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
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