About: Divergent Reactivity of Alkyl Aryl Sulfones with Bases: Selective Functionalization of ortho-Aryl and alpha-Alkyl Units Enabled by a Unique Carbanion Transmetalation     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

AttributesValues
rdf:type
rdfs:seeAlso
Description
  • The electron-accepting sulfonyl group exhibits a strong acidifying influence on neighboring -H atoms. The Julia and related olefinations are based on this effect. Here a surprising reversal in the metalation selectivity of branched alkyl aryl sulfones is described. Such sulfones were found to initially undergo directed ortho-metalation with good regioselectivity, despite having a more acidic -H atom. The structure of the alkyl unit profoundly, but predictably, influences the regioselectivity of the attack of the base. In - and -branched ortho-(alkylsulfonyl)aryllithiums a transmetalation to the -carbanion proceeds only upon warming. Correspondingly generated ortho- or -carbanions were then selectively applied thus permitting access to synthetically interesting compound classes.
  • The electron-accepting sulfonyl group exhibits a strong acidifying influence on neighboring -H atoms. The Julia and related olefinations are based on this effect. Here a surprising reversal in the metalation selectivity of branched alkyl aryl sulfones is described. Such sulfones were found to initially undergo directed ortho-metalation with good regioselectivity, despite having a more acidic -H atom. The structure of the alkyl unit profoundly, but predictably, influences the regioselectivity of the attack of the base. In - and -branched ortho-(alkylsulfonyl)aryllithiums a transmetalation to the -carbanion proceeds only upon warming. Correspondingly generated ortho- or -carbanions were then selectively applied thus permitting access to synthetically interesting compound classes. (en)
Title
  • Divergent Reactivity of Alkyl Aryl Sulfones with Bases: Selective Functionalization of ortho-Aryl and alpha-Alkyl Units Enabled by a Unique Carbanion Transmetalation
  • Divergent Reactivity of Alkyl Aryl Sulfones with Bases: Selective Functionalization of ortho-Aryl and alpha-Alkyl Units Enabled by a Unique Carbanion Transmetalation (en)
skos:prefLabel
  • Divergent Reactivity of Alkyl Aryl Sulfones with Bases: Selective Functionalization of ortho-Aryl and alpha-Alkyl Units Enabled by a Unique Carbanion Transmetalation
  • Divergent Reactivity of Alkyl Aryl Sulfones with Bases: Selective Functionalization of ortho-Aryl and alpha-Alkyl Units Enabled by a Unique Carbanion Transmetalation (en)
skos:notation
  • RIV/00216208:11310/14:10277921!RIV15-MSM-11310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, P(GAP207/11/1598), Z(MSM0021620857)
http://linked.open...iv/cisloPeriodika
  • 7
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 11906
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11310/14:10277921
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • acidity; alkylation; deprotonation; lithiation; transmetalation; sulfones (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [976A1BB99DC9]
http://linked.open...i/riv/nazevZdroje
  • European Journal of Organic Chemistry
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • neuveden
http://linked.open...iv/tvurceVysledku
  • Císařová, Ivana
  • Jahn, Ullrich
  • Řehová, Lucie
http://linked.open...ain/vavai/riv/wos
  • 000331612600016
http://linked.open...n/vavai/riv/zamer
issn
  • 1434-193X
number of pages
http://bibframe.org/vocab/doi
  • 10.1002/ejoc.201301553
http://localhost/t...ganizacniJednotka
  • 11310
Faceted Search & Find service v1.16.118 as of Jun 21 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software