Process for the preparation of 3-chloro-5-hydroxypyrazoles
Phosphoric or thiophosphoric esters of 5(3)-hydroxypyrazoles are disclosed having the formula: STR1 wherein: R=H; alkyl with 1-7 carbon atoms optionally substituted with halogens, CN, and carboalkoxy groups; phenyl optionally substituted; benzyl; alkenyl;
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(2008/06/13)
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