| abstract |
THE SUBJECT OF THE INVENTION IS HALOGENO-4 OXETANNONES-2. THESE COMPOUNDS MEET THE FORMULA: (CF DRAWING IN BOPI) IN WHICH X REPRESENTS CL, BR OR I AND Y A RADICAL RRRC- IN WHICH R AND R EACH DESIGNATE F, CL OR BR AND RH, F, CL, BR, - CRRR, -CN, -COCL, -COO- (C-ALKYL), -PO (CL) OR -PO (OC-ALKYL), THE R, R AND R SYMBOLS DESIGNATE EACH F, CL OR BR. THEY ARE PREPARED BY REACTION OF DICETENE WITH AN XY COMPOUND IN THE PRESENCE OF AN AGENT GENERATOR OF FREE RADICALS. THESE COMPOUNDS HAVE PRECIOUS BIOCIDAL PROPERTIES. THEY CAN BE USED IN PARTICULAR AS ACTIVE SUBSTANCES IN ALGAECIDE PRODUCTS. |