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Description
| - Studies were made of the kinetics of methoxide ion-catalysed reactions of seven substituted phenyl N-(2-thiocarbamoylphenyl)carbamates, 4-methoxyphenyl N-(2-thiocarbamoylphenyl)-N-(methyl)carbamate and five substituted phenyl N-(4-thiocarbamoylphenyl)carbamates, leading to the respective cyclisation products (i.e. 4-thioxo-1H,3H-quinazolin-2-one or 1-methyl-4-thioxo-1H,3H-quinazolin-2-one) and/or methanolysis product, i.e. methyl N-(4-thiocarbamoylphenyl)carbamate. It was found that the ring closure reaction proceeds by the BAc2 mechanism with the splitting off of phenoxide anion being the rate-limiting step, while the methanolysis follows the E1cB mechanism. The ring closure reaction of 4-methoxyphenyl N-(2-thiocarbamoyl)-N-(methyl)carbamate proceeds kinetically in two steps.
- Studies were made of the kinetics of methoxide ion-catalysed reactions of seven substituted phenyl N-(2-thiocarbamoylphenyl)carbamates, 4-methoxyphenyl N-(2-thiocarbamoylphenyl)-N-(methyl)carbamate and five substituted phenyl N-(4-thiocarbamoylphenyl)carbamates, leading to the respective cyclisation products (i.e. 4-thioxo-1H,3H-quinazolin-2-one or 1-methyl-4-thioxo-1H,3H-quinazolin-2-one) and/or methanolysis product, i.e. methyl N-(4-thiocarbamoylphenyl)carbamate. It was found that the ring closure reaction proceeds by the BAc2 mechanism with the splitting off of phenoxide anion being the rate-limiting step, while the methanolysis follows the E1cB mechanism. The ring closure reaction of 4-methoxyphenyl N-(2-thiocarbamoyl)-N-(methyl)carbamate proceeds kinetically in two steps. (en)
- Byla studována kinetika reakce sedmi substitutovaných fenyl N-(2-thiokarbamoylfenyl)karbamátů, 4-methoxyfenyl N-(2-thiokarbamoylfenyl)-N-(methyl)karbamátu a pěti substituovaných fenyl N-(4-thiokarbamoylfenyl)karbamátů s metahnolátem sodným poskytující odpovídající produkty cyklizace (tj. 4-thioxo-1H,3H-chinazolin-2-on nebo 1-methyl-4-thioxo-1H,3H-chinazolin-2-on) a methanolýzy , tj. methyl N-(4-thiokarbamoylfenyl)karbamát. Bylo zjištěno, že cyklizace probíhá BAc2 mechanismem s rychlost určujícím odštěpováním fenolátového aniontu , kdežto methanolýza probíhá E1cB mechanismem. Cyklizace 4-methoxyfenyl N-(2-thiokarbamoyl)-N-(methyl)karbamátu probíhá kineticky ve dvou krocích. (cs)
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Title
| - Study of Ring Closure Reaction of Substituted Phenyl N-(2-thiocarbamoylphenyl)carbamates Catalysed by Methoxide Ion
- Study of Ring Closure Reaction of Substituted Phenyl N-(2-thiocarbamoylphenyl)carbamates Catalysed by Methoxide Ion (en)
- Studium cyklizační reakce substituovaných fenyl N-(2-thiokarbamoylfenyl)karbamátů katalyzované methanolátovým iontem (cs)
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skos:prefLabel
| - Study of Ring Closure Reaction of Substituted Phenyl N-(2-thiocarbamoylphenyl)carbamates Catalysed by Methoxide Ion
- Study of Ring Closure Reaction of Substituted Phenyl N-(2-thiocarbamoylphenyl)carbamates Catalysed by Methoxide Ion (en)
- Studium cyklizační reakce substituovaných fenyl N-(2-thiokarbamoylfenyl)karbamátů katalyzované methanolátovým iontem (cs)
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skos:notation
| - RIV/00216275:25310/06:00004377!RIV08-MSM-25310___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216275:25310/06:00004377
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - N-(2-thiocarbamoylphenyl)carbamates; kinetics; mechanism; ring closure; rotamers (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Physical Organic Chemistry
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Jansa, Petr
- Sedlák, Miloš
- Hanusek, Jiří
- Štěrba, Vojeslav
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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