A Catalytic, Brønsted Base Strategy for Intermolecular Allylic C−H Amination
摘要:
A Bronsted base activation mode for oxidative, Pd(II)/sulfoxide-catalyzed, intermolecular C-H allylic amination is reported. N,N-diisopropylethylamine was found to promote amination of unactivated terminal olefins, forming the corresponding linear allylic amine products with high levels of stereo-, regio-, and chemoselectivity. The predictable and high selectivity of this C-H oxidation method enables late-stage incorporation of nitrogen into advanced synthetic intermediates and natural products.
Catalytic Intermolecular Linear Allylic C−H Amination via Heterobimetallic Catalysis
作者:Sean A. Reed、M. Christina White
DOI:10.1021/ja710206u
日期:2008.3.1
Streamlined routes to (E)-allylic carbamates that can be further elaborated to medicinally and biologically relevant allylic amines are also demonstrated. Valuable 15N-labeled allylic amines may be generated directly from allyl moieties at late stages of synthetic routes by using the readily available 15N-(methoxycarbonyl)-p-toluenesulfonamide nucleophile. Evidence is provided that this reaction proceeds
A Catalytic, Brønsted Base Strategy for Intermolecular Allylic C−H Amination
作者:Sean A. Reed、Anthony R. Mazzotti、M. Christina White
DOI:10.1021/ja903939k
日期:2009.8.26
A Bronsted base activation mode for oxidative, Pd(II)/sulfoxide-catalyzed, intermolecular C-H allylic amination is reported. N,N-diisopropylethylamine was found to promote amination of unactivated terminal olefins, forming the corresponding linear allylic amine products with high levels of stereo-, regio-, and chemoselectivity. The predictable and high selectivity of this C-H oxidation method enables late-stage incorporation of nitrogen into advanced synthetic intermediates and natural products.