Arbeiten über Phosphorsäure??und Thiophosphorsäure ester mit einem heterocyclischen Substituenten. 2. Mitteilung. Eine verbesserte Methode zur Herstellung von 1, …
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.
![3-chloromethyl-5-methyl-3H-[1,3,4]oxadiazol-2-one结构式](https://image.chemsrc.com/caspic/080/1711-85-9.png)
