Iridium-Catalyzed Enantioselective Allylic Substitution of Unstabilized Enolates Derived from α,β-Unsaturated Ketones
作者:Ming Chen、John F. Hartwig
DOI:10.1002/anie.201403844
日期:2014.8.11
We report Ir‐catalyzed, enantioselective allylic substitution reactions of unstabilized silyl enolates derived from α,β‐unsaturated ketones. Asymmetric allylic substitution of a variety of allylic carbonates with silyl enolates gave allylated products in 62–94 % yield with 90–98 % ee and >20:1 branched‐to‐linear selectivity. The synthetic utility of this method was illustrated by the short synthesis
我们报告了衍生自 α,β-不饱和酮的不稳定甲硅烷基烯醇化物的 Ir 催化的对映选择性烯丙基取代反应。用甲硅烷基烯醇化物对各种烯丙基碳酸酯进行不对称烯丙基取代得到烯丙基化产物,产率为 62-94%,ee为 90-98% ,支链至线性选择性 >20:1。抗癌剂 TEI-9826 的短合成说明了该方法的合成效用。
ACYLOXY- AND PHOSPHORYLOXY-BUTADIENE-FE(CO)3 COMPLEXES AS ENZYME-TRIGGERED CO-RELEASING MOLECULES
申请人:Schmalz Hans-Guenther
公开号:US20120202774A1
公开(公告)日:2012-08-09
The present invention provides acyloxy- and phosphoryloxy-butadiene-Fe(CO)
3
complexes which can deliver carbon monoxide to a physiological target, wherein release of carbon monoxide can be enzymatically-triggered. The present invention also provides for methods of manufacturing the enzymatically-triggered carbon monoxide releasing molecules and methods for their use.
Acyloxy- and phosphoryloxy-butadiene-Fe(CO)3 complexes as enzyme-triggered co-releasing molecules
申请人:Schmalz Hans-Guenther
公开号:US08927750B2
公开(公告)日:2015-01-06
The present invention provides acyloxy- and phosphoryloxy-butadiene-Fe(CO)3 complexes which can deliver carbon monoxide to a physiological target, wherein release of carbon monoxide can be enzymatically-triggered. The present invention also provides for methods of manufacturing the enzymatically-triggered carbon monoxide releasing molecules and methods for their use.