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Regioselective Semihydrogenation of Dienes
The Journal of Organic Chemistry, 2011A one-pot, three-step strategy for the regioselective semihydrogenation of dienes is described. This procedure uses 9-BBN-H as a temporary protective group for alkenes. Yields range from 55% to 95%, and the reaction is tolerant of a variety of common functional groups.
Thomas J A, Graham +3 more
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Regioselective Allylgallation of Terminal Alkynes.
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Phil Ho, Lee +4 more
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2012
This chapter explores regioselectivity. Chemoselectivity means that there are two separate functional groups and that a reagent must choose between them. By contrast, regioselectivity implies that there is one functional group that can react in two different places and a reagent must choose where to react.
Jonathan Clayden +2 more
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This chapter explores regioselectivity. Chemoselectivity means that there are two separate functional groups and that a reagent must choose between them. By contrast, regioselectivity implies that there is one functional group that can react in two different places and a reagent must choose where to react.
Jonathan Clayden +2 more
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Regioselective Synthesis of Benzofuranones and Benzofurans
The Journal of Organic Chemistry, 2021Reaction of 3-hydroxy-2-pyrones with nitroalkenes bearing ester groups gives benzofuranones. The reaction allows regioselective preparation of the benzofuranones with programmable substitution at any position. Complex substitution patterns are readily created. The substituted benzofuranones can be converted to substituted benzofurans.
Xiaojie Zhang, Christopher M. Beaudry
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Regioselective Oxidation of Isoxazolidines to Ketonitrones
HETEROCYCLES, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Osamu Iwamoto +3 more
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Regioselective Hydrodebromination of Polybrominated Indoles
European Journal of Organic Chemistry, 2014AbstractThe mixture of sodium borohydride and N,N,N′,N′‐tetramethylethylenediamine in combination with a palladium catalyst is a mild and efficient system for the regioselective hydrodebromination of polybrominated indoles with both N‐donating and N‐withdrawing substituents [N‐methyl‐ and N‐(methoxycarbonyl)indoles, respectively].
CHELUCCI, Giorgio Adolfo +2 more
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On the Regioselectivity of Imidoyl Radical Cyclisations
European Journal of Organic Chemistry, 2000The previously reported tandem cyclisation of N-aryl α-(2-cyanophenyl)sulfanyl imidoyl radicals affords one quinoxaline derivative arising from exclusive 1,6-cyclisation of the final iminyl radical onto the N-aryl ring. When the imidoyl radicals are generated by addition of photolytically generated (2-cyanophenyl)sulfanyl radicals to isocyanides, the ...
NANNI D. +3 more
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Synthesis of Regioselectively Deuterated Cyclopropanes
Synthetic Communications, 1996Abstract A regioselective synthesis of deuterated aliphatic cyclopropanes has been developed to furnish labeled substrates for gas-phase ion-molecule reaction studies.
Duffault, J.M. +3 more
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Regioselectivity-Switchable Hydroarylation of Styrenes
Journal of the American Chemical Society, 2010Cobalt-phosphine and cobalt-carbene catalysts have been developed for the hydroarylation of styrenes via chelation-assisted C-H bond activation, to afford branched and linear addition products, respectively, in a highly regioselective fashion. Deuterium-labeling experiments suggested a mechanism involving reversible C-H bond cleavage and olefin ...
Ke, Gao, Naohiko, Yoshikai
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Regioselective amination of polyunsaturated ethers
Tetrahedron, 1992Abstract (Ethoxycarbonyl)nitrene (NCO2Et) adds selectively to methyl neryl ether, geranyl methyl ether, and allyl neryl ether. For all the substrates the main product (up to 50%) is the aziridine deriving from addition to the double bond remote from the oxygen atom.
Giorgio Cerichelli +4 more
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