Laccase-catalyzed stereoselective oxidative ring opening of 2,5-dialkylfurans into 2-ene-1,4-diones using air as an oxidant
作者:Chimène Asta、Jürgen Conrad、Sabine Mika、Uwe Beifuss,†
DOI:10.1039/c1gc15810d
日期:——
The laccase-catalyzed ring opening of 2,5-dimethylfuran using air as an oxidant stereoselectively yields (Z)- or (E)-3-hexene-2,5-dione depending on the mediator employed: with TEMPO the (Z)-3-hexene-2,5-dione is formed, while a combination of TEMPO and violuric acid gives (E)-3-hexene-2,5-dione. The (Z)-selective ring cleavage was extended to a variety of symmetrical and unsymmetrical 2,5-dialkylfurans
漆酶催化的开环 2,5-二甲基呋喃使用空气作为氧化剂立体选择产生(Z)-或(E)-3-己烯-2,5-二酮取决于所使用的介体:与TEMPO一起形成(Z)-3-己烯-2,5-二酮,而TEMPO和紫草酸 给 (E)-3-己烯-2,5-二酮。(Z)-选择性环裂解扩展到各种对称和不对称的2,5-二烷基呋喃。