Displacement of Dinitrogen by Oxygen: A Methodology for the Catalytic Conversion of Diazocarbonyl Compounds to Ketocarbonyl Compounds by 2,6-Dichloropyridine-N-oxide,Organic Letters

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Displacement of Dinitrogen by Oxygen: A Methodology for the Catalytic Conversion of Diazocarbonyl Compounds to Ketocarbonyl Compounds by 2,6-Dichloropyridine-N-oxide
Organic Letters ( IF 4.9 ) Pub Date : 2018-01-18 00:00:00 , DOI: 10.1021/acs.orglett.7b03912
Yang Yu ₁ , Qiang Sha ₂ , Hui Cui ₁ , Kory S. Chandler ₁ , Michael P. Doyle ₁

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Dirhodium(II) catalyzed dinitrogen extrusion from diazocarbonyl compounds by 2,6-dichloropyridine-N-oxide forms ketocarbonyl compounds in near-quantitative yields. Reactions occur at room temperature, and the pyridine product does not coordinate with dirhodium(II) to inhibit catalysis. Anhydrous tricarbonyl compounds, as well as dicarbonyl compounds, are conveniently prepared by this methodology, and they have been used in situ for catalytic ene and aldol transformations.

中文翻译：

氧气置换二氮：2,6-二氯吡啶-N-氧化物催化重氮羰基化合物催化转化为酮羰基化合物的方法

重氮（II）催化的重氮通过2,6-二氯吡啶-N-氧化物从重氮羰基化合物中挤出，以接近定量的产率形成酮羰基化合物。反应在室温下发生，并且吡啶产物不与二氢吡啶鎓（II）配位以抑制催化作用。通过这种方法可以方便地制备无水三羰基化合物以及二羰基化合物，并且它们已就地用于催化烯和羟醛的转化。

更新日期：2018-01-18

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