transformation of enones was investigated with cultured cells of Synechococcus sp. PCC 7942 (a cyanobacterium). The cells reduced both the endocyclic C-C double bond of s-trans enones and the exocyclic C-C double bond of s-cis enones with high enantioselectivity to afford optically active α-substituted (S)-ketones under illumination. In addition, the reduction of the double bond of these enones was accompanied
用聚球藻的培养细胞研究了烯酮的不对称转化。PCC 7942(一种蓝细菌)。细胞以高对映选择性减少了 s-trans enones 的内环 CC 双键和 s-cis enones 的外环 CC 双键,以在光照下提供光学活性的 α-取代 (S)-酮。此外,这些烯酮双键的还原伴随着饱和醇的形成。细胞优先将简单的脂肪酮而不是环状酮还原为相应的(S)-醇,具有出色的对映选择性。
Asymmetric reduction of enones with Synechococcus sp. PCC 7942
Synechococcus sp. PCC 7942, a cyanobacterium, reduced both the endocyclic C-C double bond of s-trans enones and the exocyclic C-C double bond of s-cis enones with high enantioselectivity to afford the corresponding (S)-ketones under illumination. (C) 2004 Elsevier Ltd. All rights reserved.