Arbeiten über Phosphorsäure- und Thiophosphorsäure ester mit einem heterocyclischen Substituenten. 2. Mitteilung. Eine verbesserte Methode zur Herstellung von 1, 3, 4-Oxadiazol-2(3H) onen und von Thio- und Dithiophosphorsäure-O,O-dialkyl-S-[(1, 3, 4-oxadiazol-2(3H)-on-3-yl)-methyl]-estern |
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Authors: | K Rüfenacht |
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Abstract: | Some 1,3,4-oxadiazol-2(2H)-ones with aliphatic substituents in 5-position are prepared in good yields and converted via the 3-hydroxymethyl derivatives to the corresponding 3-chloromethyl derivatives which are suitable starting materials for the preparation of insecticidal O,O-dialkyl-S-(5-subst.-1,3,4-oxidiazol-2(3H)-one-3-yl)-methyl]-thiophosphates and dithiophosphates. |
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