Different routes are described for the synthesis of 4-benzyloxy-2-D3-phenol, a key building block in the preparation of D3-δ-tocopherol. Conditions for the improvement of Minami’s reduction are also given, allowing a straightforward route to the title compound and a new synthesis of R,R,R-5-D3-α-tocopherol in good yields, starting from widely available R,R,R-α-tocopherol. (© Wiley-VCH Verlag GmbH &
描述了合成 4-苄氧基-2-D3-
苯酚的不同路线,这是制备 D3-
δ-生育酚的关键组成部分。还给出了改善 Minami 还原的条件,允许从广泛可用的 R,R,R 开始以良好的收率合成目标化合物的直接途径和 R,R,R-5-D3-α-
生育酚的新合成-α-
生育酚。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)