Simple, Chemoselective Hydrogenation with Thermodynamic Stereocontrol
نویسندگان
چکیده
منابع مشابه
Simple, Chemoselective Hydrogenation with Thermodynamic Stereocontrol
Few methods permit the hydrogenation of alkenes to a thermodynamically favored configuration when steric effects dictate the alternative trajectory of hydrogen delivery. Dissolving metal reduction achieves this control, but with extremely low functional group tolerance. Here we demonstrate a catalytic hydrogenation of alkenes that affords the thermodynamic alkane products with remarkably broad ...
متن کاملSimple, Chemoselective, Catalytic Olefin Isomerization
Catalytic amounts of Co(Sal(tBu,tBu))Cl and organosilane irreversibly isomerize terminal alkenes by one position. The same catalysts effect cycloisomerization of dienes and retrocycloisomerization of strained rings. Strong Lewis bases like amines and imidazoles, and labile functionalities like epoxides, are tolerated.
متن کاملAqueous room-temperature gold-catalyzed chemoselective transfer hydrogenation of aldehydes.
Reduction of aldehydes to the corresponding alcohols is one of the most fundamental and useful reactions that are important in the pharmaceutical and chemical industry. Among the various available reduction protocols for the synthesis of valuable hydroxy compounds, catalytic transfer hydrogenation (TH) has emerged as the most viable, mainly due to the non-involvement of highly flammable and exp...
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A highly enantioselective synthesis of chiral fluorinated propargylamines was developed through phosphoric acid and ruthenium-catalyzed chemoselective biomimetic hydrogenation of the carbon-nitrogen double bond of fluorinated alkynyl ketimines in the presence of a carbon-carbon triple bond. This reaction features high chemoselectivity and slow background reaction. In addition, selective transfo...
متن کاملCorrection to “Simple, Chemoselective, Catalytic Olefin Isomerization”
Page 16788 and Supporting Information page SI-4. Entry 13 was inadvertently omitted from Table 1 and S.I. Table 1. This entry suggests mechanistic overlap between our alkene isomerization and hydrogen atom transfer radical polymer-ization, more so than entry 12 alone. The complete S.I. Table 1 is shown below. This is an open access article published under an ACS AuthorChoice License, which perm...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2014
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja412342g