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- W2951978134 abstract "A variety of prop-2-ynylamides have been carbonylated under oxidative conditions to give oxazolines, oxazolines with chelating groups, and bisoxazolines bearing an (alkoxycarbonyl)methylene chain at the 5 position in good yields. The cyclization−alkoxycarbonylation process was carried out in alcoholic media at 50−70 °C and under 24 bar pressure of 3:1 carbon monoxide/air in the presence of catalytic amounts of 10% Pd/C or PdI2 in conjunction with KI. Cyclization occurred by anti attack of an oxygen function on the palladium-coordinated triple bond, followed by stereospecific alkoxycarbonylation, strictly resulting in E-stereochemistry. The structures of representative oxazolines and bisoxazolines have been determined by X-ray diffraction analysis." @default.
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- W2951978134 date "2002-05-11" @default.
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- W2951978134 title "Efficient and General Synthesis of 5-(Alkoxycarbonyl)methylene-3-oxazolines by Palladium-Catalyzed Oxidative Carbonylation of Prop-2-ynylamides" @default.
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- W2951978134 doi "https://doi.org/10.1021/jo0200217" @default.
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