Arbeiten über Phosphorsäure- und Thiophosphorsäureester mit einem heterocyclischen Substituenten. 8. Mitteilung. Das<i>Stäubli</i>-Verfahren, eine Eintopf-Kondensation von Thiophosphorverbindungen (, XO,S), Aldehyden und Heterocyclen (mit saurer NH-Gruppe)
作者:Kurt Rüfenacht
DOI:10.1002/hlca.19740570619
日期:——
The condensation reaction of thiophosphoric compounds 1, aldehydes and heterocycles 3 with an acidic NH-group in strong mineral acid of specific concentration to asymmetrical compounds 4, called Stäubli procedure, differs from the Mannich-type reaction catalyzed by weak or dilute acid (aminoalkylation of Hellmann & Opitz) and from the Tscherniac-Einhorn-type condensation in concentrated sulfuric acid
[EN] PROCESSES FOR CONVERTING CARBOXAMIDES TO THIOCARBOXAMIDES<br/>[FR] PROCÉDÉS POUR CONVERTIR DES CARBOXAMIDES EN THIOCARBOXAMIDES
申请人:VERTELLUS SPECIALTIES INC
公开号:WO2016182900A1
公开(公告)日:2016-11-17
Process for converting a carboxamide to a thiocarboxamide includes reacting (a) a substrate that comprises a heteroatom-containing moiety and a carboxamide moiety with (b) a dialkyl dithiophosphate and/or a salt thereof. The heteroatom-containing moiety includes a heteroatom selected from the group consisting of N, O, and S. Processes for preparing piperidine-4-thiocarboxamide are described.
Processes for converting carboxamides to thiocarboxamides
申请人:Vertellus Holdings LLC
公开号:US10414723B2
公开(公告)日:2019-09-17
Process for converting a carboxamide to a thiocarboxamide includes reacting (a) a substrate that comprises a heteroatom-containing moiety and a carboxamide moiety with (b) a dialkyl dithiophosphate and/or a salt thereof. The heteroatom-containing moiety includes a heteroatom selected from the group consisting of N, O, and S. Processes for preparing piperidine-4-thiocarboxamide are described.
将羧酰胺转化为硫代甲酰胺的工艺包括将(a)包含含杂原子分子和羧酰胺分子的底物与(b)二烷基二硫代磷酸酯和/或其盐反应。含杂原子的基团包括选自 N、O 和 S 所组成的组的杂原子。
SARKAR, A., PESTISIDES, 1985, 19, N 11, 39-41
作者:SARKAR, A.
DOI:——
日期:——
PROCESSES FOR CONVERTING CARBOXAMIDES TO THIOCARBOXAMIDES