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- W2950285238 abstract "Regio- and stereoselectivity in the chloropalladation carbonylation reaction of different acetylenic selenides in the presence of 0.05 equiv of PdCl2 and 3 equiv of cupric chloride under 1 atm of carbon monoxide affording 2-seleno-3-chloroacrylates were investigated. Opposite stereoselectivities were observed with 2-phenylethynyl selenides and 2-alkylethynyl selenides: the reactions of 2-phenylethynyl selenides afforded (E)-2-seleno-3-chloro-3-phenylacrylates, while the reactions of 2-alkylethynyl selenides gave (Z)-2-seleno-3-chloro-3-alkylacrylates. A chloropalladation carbonylation mechanism for this reaction was proposed. The regio- and stereoselective chloropalladation of the carbon−carbon triple bond in acetylenic selenides affords 1-enylpalladium intermediates, in which the palladium atom connects with the carbon atom bonding with the selenium atom. Carbonylation in the presence of an alcohol affords 2-seleno-3-chloroacrylates." @default.
- W2950285238 created "2019-06-27" @default.
- W2950285238 creator A5046017075 @default.
- W2950285238 creator A5091628882 @default.
- W2950285238 date "2001-02-06" @default.
- W2950285238 modified "2023-09-22" @default.
- W2950285238 title "ChemInform Abstract: Unique Regio- and Stereoselectivity in Pd-Catalyzed Chlorocarbonylation Reaction of 2-Phenylethynyl Selenides and 2-Alkylethynyl Selenides. Highly Stereoselective Synthesis of 2-Seleno-3-chloroacrylates." @default.
- W2950285238 cites W2172007600 @default.
- W2950285238 doi "https://doi.org/10.1002/chin.200106058" @default.
- W2950285238 hasPublicationYear "2001" @default.
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