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  • Deriváty pregnan-12,20-dionu podléhají v alkalickém prostředí epimerisaci v poloze 17, ve vzniklém produktu jsou obě oxoskupiny tak blízko, že dojde k intramolekulární aldolové kondensaci. Působením hydridu sodného v DMSO dochází ke vzniku cyklopropano-ketonu. (cs)
  • Pregnane-12,20-diones in alkaline solution undergo equlibration in position 17 which brings both oxo groups close enough to enable the intramolecular aldol condensation. Sodium hydride in DMSO then converts the product into a cyklopropano-ketone.
  • Pregnane-12,20-diones in alkaline solution undergo equlibration in position 17 which brings both oxo groups close enough to enable the intramolecular aldol condensation. Sodium hydride in DMSO then converts the product into a cyklopropano-ketone. (en)
Title
  • Neighboring group participation in 12,20-dioxopregnanes
  • Neighboring group participation in 12,20-dioxopregnanes (en)
  • Spoluúčast sousedních skupin u 12,20-diketopregnanů (cs)
skos:prefLabel
  • Neighboring group participation in 12,20-dioxopregnanes
  • Neighboring group participation in 12,20-dioxopregnanes (en)
  • Spoluúčast sousedních skupin u 12,20-diketopregnanů (cs)
skos:notation
  • RIV/61388963:_____/07:00092020!RIV08-AV0-61388963
http://linked.open.../vavai/riv/strany
  • 1091;1094
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA203/06/1605), Z(AV0Z40550506)
http://linked.open...iv/cisloPeriodika
  • 11
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
  • 436619
http://linked.open...ai/riv/idVysledku
  • RIV/61388963:_____/07:00092020
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • 12,20-dioxopregnanes; DMSO; tert-BuOH (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [C206480B6C57]
http://linked.open...i/riv/nazevZdroje
  • Natural Product Communications
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
  • 2
http://linked.open...iv/tvurceVysledku
  • Pohl, Radek
  • Kasal, Alexander
  • Matyáš, Libor
http://linked.open...n/vavai/riv/zamer
issn
  • 1934-578X
number of pages
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