Oxidative cyclizations of allenic sulfonamides with dimethyldioxirane
作者:Jack K. Crandall、Thierry Reix
DOI:10.1016/s0040-4039(00)77158-9
日期:1994.4
The dimethyldioxiraneoxidations of allenic amine derivatives give highly functionalized nitrogen heterocycles derived from cyclizations of intermediate allene mono- and diepoxides.
Rhodium‐Catalyzed Asymmetric Intramolecular Hydroamination of Allenes
作者:Dino Berthold、Arne G. A. Geissler、Sabrina Giofré、Bernhard Breit
DOI:10.1002/anie.201904833
日期:2019.7.15
The rhodium‐catalyzed asymmetric intramolecular hydroamination of sulfonyl amides with terminal allenes is reported. It provides selective access to 5‐ and 6‐membered N‐heterocycles, scaffolds found in a large range of different bioactive compounds. Moreover, gram scale reactions, as well as the application of suitable product transformations to natural products and key intermediates thereof are demonstrated
Palladium-Catalyzed Intramolecular Hydroamination of Allenes Coupled to Aerobic Alcohol Oxidation
作者:Shuifa Qiu、Yunyang Wei、Guosheng Liu
DOI:10.1002/chem.200802381
日期:2009.3.9
Taking the air! A PdII‐catalyzed intramolecular hydroamination of allenes coupled to alcohol oxidation has been developed. This reaction is performed by using a nitrogen‐based ligand under aerobic conditions, under which the molecular oxygen is used as the terminal oxidant for the reoxidation of Pd0 species to complete the catalyticcycle.
Bi(OTf)3 was proven to act as an effective catalyst for tandem ene-reaction/hydroamination of amino-olefin and amino-allene compounds with some enophiles, giving rise to functionalized N-heterocycles in good yields.
Gold(I)-Catalyzed Enantioselective Intramolecular Hydroamination of Allenes
作者:Rebecca L. LaLonde、Benjamin D. Sherry、Eun Joo Kang、F. Dean Toste
DOI:10.1021/ja068819l
日期:2007.3.1
The asymmetric intramolecular hydroamination of allenes catalyzed by phosphinegold(I)−bis-p-nitrobenzoate complexes is described. This reaction is applicable to the enantioselective formation of vinyl pyrrolidines and piperidines in 70−99% ee.
描述了由膦金 (I)-双-对-硝基苯甲酸酯配合物催化的丙二烯的不对称分子内加氢胺化。该反应适用于在 70-99% ee 中对映选择性形成乙烯基吡咯烷和哌啶。