Expression of concern: A highly concise and practical route to clavaminols, sphinganine and (+)-spisulosine via indium mediated allylation of α-hydrazino aldehyde and a theoretical insight into the stereochemical aspects of the reaction
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DOI: 10.1039/c7ra90077e
Abstract: Expression of concern for ‘A highly concise and practical route to clavaminols, sphinganine and (+)-spisulosine via indium mediated allylation of α-hydrazino aldehyde and a theoretical insight into the stereochemical aspects of the reaction’ by Menaka… read more here.
Keywords: concern highly; practical route; concise practical; expression concern ... See more keywords
A three-component, general and practical route for diastereoselective synthesis of aza-spirocyclic pyrazolones via a decarboxylative annulation process
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DOI: 10.1039/d0nj05915c
Abstract: An efficient, general, and practical route for highly diastereoselective synthesis of aza-spirocyclic pyrazolones from easily available α-amino acids, aldehydes, and alkylidene pyrazolones by means of a decarboxylative annulation process is reported. This high-yielding reaction proceeds… read more here.
Keywords: diastereoselective synthesis; spirocyclic pyrazolones; general practical; aza spirocyclic ... See more keywords
Tandem Diboration–Protoboration of Terminal Alkynes: A Practical Route to α-Substituted Alkenyl Boronates
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DOI: 10.1055/s-0043-1774906
Abstract: A practical method is introduced for the catalytic conversion of terminal alkynes into α-substituted vinyl boronic esters. The process employs catalytic amounts of nanoparticle-supported gold catalysts and catalytic amounts of copper to effect the overall… read more here.
Keywords: terminal alkynes; protoboration terminal; practical route; tandem diboration ... See more keywords