1973
DOI: 10.1016/s0040-4039(01)96227-6
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Reactions of electron-depleted thiocarbonyl compounds with diazoalkanes

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Cited by 24 publications
(10 citation statements)
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“…5%), which, according to the 1 H-NMR spectrum, was identical with 4. 5 In order to test if the intermediate (2a) undergoes a 1,3-dipolar electrocyclization to give the corresponding thiirane, or if a cyclodimerization occurs, analogous to the reaction in Scheme 1, 1a was treated with diazomethane at -60°C until the red color of the solution disappeared. After warming to -30°C, evolution of nitrogen was observed, but no product could be isolated by means of crystallization nor by chromatographic workup.…”
Section: Resultsmentioning
confidence: 99%
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“…5%), which, according to the 1 H-NMR spectrum, was identical with 4. 5 In order to test if the intermediate (2a) undergoes a 1,3-dipolar electrocyclization to give the corresponding thiirane, or if a cyclodimerization occurs, analogous to the reaction in Scheme 1, 1a was treated with diazomethane at -60°C until the red color of the solution disappeared. After warming to -30°C, evolution of nitrogen was observed, but no product could be isolated by means of crystallization nor by chromatographic workup.…”
Section: Resultsmentioning
confidence: 99%
“…5 Based on present knowledge, both reactions are believed to occur via reactive thiocarbonyl S-methanides of type (2). Analogous reactions, which were carried out with phenyl-and diphenyldiazomethane, yielded the corresponding thiiranes via 1,3-dipolar electrocyclization of the intermediate thiocarbonyl S-ylides.…”
Section: + 1amentioning
confidence: 99%
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“…"Arbete är det bästa tidsfördriv". 156 I huvudsak finner vi i ordspråken en positiv syn på arbete. Ordspråk som "Arbetaren är sin lön värd" har en gammaltestamentlig dimension liksom förhållandet mellan att arbeta och ta igen sig; "Arbete utan hvila varar inte länge."…”
Section: Islamunclassified
“…The reaction of diazoalkanes with thiocarbonyl compounds has been extensively studied (1)(2)(3)(4)(5), and d~verse products, the nature of which depends on the structure of both reactants, are formed. For example, it has long been known (6,7) that 1,3,4-thiadiazoles are produced from thiocarboxylic acid chlorides and diazoacetic esters or diazomethane.…”
mentioning
confidence: 99%