About: pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position     Goto   Sponge   NotDistinct   Permalink

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Description
  • Diastereoselectivity of 1,3-dipolar cycloaddition reactions of benzyl azide, diazomethane, a nitrile oxide and a nitrile imine to alpha-methylidene-gamma-lactone dipolarophile was effectively controlled by a bulky substituent, 4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl (OBO), in gamma-position of the dipolarophile. The dipoles added from the less hindered face of the double bond with an excellent selectivity. The enantiomerically pure dipolarophile was prepared from the easily available (S)-5-oxotetrahydrohydrofuran-2-carboxylic acid.
  • Diastereoselectivity of 1,3-dipolar cycloaddition reactions of benzyl azide, diazomethane, a nitrile oxide and a nitrile imine to alpha-methylidene-gamma-lactone dipolarophile was effectively controlled by a bulky substituent, 4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl (OBO), in gamma-position of the dipolarophile. The dipoles added from the less hindered face of the double bond with an excellent selectivity. The enantiomerically pure dipolarophile was prepared from the easily available (S)-5-oxotetrahydrohydrofuran-2-carboxylic acid. (en)
  • Diastereoselectivity of 1,3-dipolar cycloaddition reactions of benzyl azide, diazomethane, a nitrile oxide and a nitrile imine to alpha-methylidene-gamma-lactone dipolarophile was effectively controlled by a bulky substituent, 4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl (OBO), in gamma-position of the dipolarophile. The dipoles added from the less hindered face of the double bond with an excellent selectivity. The enantiomerically pure dipolarophile was prepared from the easily available (S)-5-oxotetrahydrohydrofuran-2-carboxylic acid. (cs)
Title
  • pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position
  • pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position (en)
  • pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position (cs)
skos:prefLabel
  • pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position
  • pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position (en)
  • pi-Facial selectivity in 1,3-dipolar cycloaddition reactions of alpha-methylidene-gamma-lactone substituted by 4-methyl-2,6,7-trioxabicyclo[2.2.2]octanyl group in gamma-position (cs)
skos:notation
  • RIV/00216224:14310/02:00006105!RIV08-MSM-14310___
http://linked.open.../vavai/riv/strany
  • 353
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 143100011)
http://linked.open...iv/cisloPeriodika
  • 3
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
  • 658309
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/02:00006105
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • 1; 3-dipolar cycloadditions; methylene lactones; stereoselective synthesis; spiro compounds; ortho esters (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [EDE40AF8E592]
http://linked.open...i/riv/nazevZdroje
  • Collection of Czechoslovak Chemical Communications
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 67
http://linked.open...iv/tvurceVysledku
  • Mazal, Ctibor
  • Melša, Petr
http://linked.open...n/vavai/riv/zamer
issn
  • 0010-0765
number of pages
http://localhost/t...ganizacniJednotka
  • 14310
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