Modular Functionalization of Allenes to Aminated Stereotriads
نویسندگان
چکیده
منابع مشابه
Regioselective Annulation of Aryl Sulfonamides with Allenes through Cobalt-Promoted C-H Functionalization.
The development of an efficient method for the construction of biologically relevant sultams is described, which represents the first case of cobalt-promoted C-H/N-H functionalization of sulfonamides with allenes. This newly developed annulation reaction demonstrated good functional group tolerance and excellent regioselectivity. Both terminal monosubstituted allenes and internal disubstituted ...
متن کاملDiastereomeric cyclic tris-allenes.
Both diastereomers of the tris-allene, cyclododeca-1,2,5,6,9,10-hexaene have been obtained using a triple cyclopropylidene-allene rearrangement. On the NMR timescale, one has D3 symmetry, and is the smallest hydrocarbon synthesised to have this symmetry, and the second has C2 symmetry.
متن کاملThe intramolecular amination of allenes.
Rhodium-bound nitrenoids are trapped by tethered allenes generating acyloxy-enamines, aminocyclopropanes, and methylene aziridines. The aminocyclopropanes undergo substitution of the acetoxy group by a variety of nucleophiles.
متن کاملThe conversion of allenes to strained three-membered heterocycles.
This article reviews methods for converting allenes to strained, three-membered methylene heterocycles, and also covers the reactivity of these products. Specifically, the synthesis and reactivity of methylene aziridines, allene oxides/spirodiepoxides, methylene silacyclopropanes, methylene phosphiranes, and methylene thiiranes are described, including applications to the synthesis of complex m...
متن کاملAmbiphilic allenes: synthesis and reactivity.
Ambiphilic allenes are generated by an organocatalyzed domino reaction of alkyl propiolates and aromatic 1,2-diketones; in the absence of any external chemical agent, these allenes perform a thermally-driven dimerization reaction to generate the corresponding fully-substituted cyclobutanes in a regio- and highly stereoselective manner.
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2012
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja304859w