Abstract
A three-step facile approach to the synthesis of 3,4-dimethyl-1H-pyrazole phosphate via the reaction of the easily available material butanone, paraformaldehyde and hydrazine hydrate has been developed. The overall yield was 52.5%.
References
1.
Fettweis U.
,
Mittelstaedt W.
, and
Schimansky C.
, Biol. Fertil. Soils , 2001 , 34 , 126 .
2.
Xu C.
,
Wu L.H.
,
Ju X.T.
, and
Zhang F.S.
, Agric. Sci. China , 2004 , 3 , 622 .
3.
Li H.
,
Liang X.Q.
, and
Chen Y.X.
, J. Environ. Sci. , 2008 , 20 , 149 .
4.
Barth G.
,
Tucher S.V.
, and
Schmidhalter U.
, Pedosphere , 2008 , 18 , 378 .
5.
Merkle H.R.
, and
Fretschner E.
, US 5569769, 1996 .
6.
Barth T.
,
Rieber N.
, and
Erhardt K.
, US 6022979, 2000 .
7.
Merkle H.R.
, and
Fretschner E.
, US 6229022, 2001 .
8.
Adam W.
, and
Miranda M.A.
, J. Org. Chem. , 1987 , 52 , 5498 .
9.
Zerulla W.
,
Barth T.
, and
Dressel J.D.K.
, Biol. Fertil. Soils , 2001 , 34 , 79 .
