57235-35-5Relevant articles and documents
7-(4,6-dimethoxypyrimidinyl)oxy- and -thiophthalides as novel herbicides: Part 1. CGA 279 233: A new grass-killer for rice
Luethy, Christoph,Zondler, Helmut,Rapold, Thomas,Seifert, Gottfried,Urwyler, Bernhard,Heinis, Thomas,Steinruecken, Hans Christian,Allen, James
, p. 205 - 224 (2007/10/03)
A series of novel types of 7-(4,6-dimethoxypyrimidin-2-yl)oxy - and -thio-3-methyl-1 (3H)-isobenzofuranones were discovered at Dr R Maag AG. From the thio-isobenzofuranyl series, CGA 279 233 - BSI-proposed common name pyriftalid - was chosen for further development as a grass herbicide for use in rice. General synthetic approaches to these new phthalic acid-derived compounds are given, with emphasis on the synthesis of pyriftalid and its physico-chemical behaviour.
Pyrimidinylthioacrylic acid derivatives useful as herbicides
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, (2008/06/13)
The present invention relates to novel pyrimidinylthioacrylic acid derivatives of the formula (I) wherein R1represents hydrogen or in each case optionally substituted C1 6 alkyl, C2 4 alkenyl or C2 4 alkynyl, R2represents hydrogen or optionally substituted C1 6 alkyl, or alkali salts, R3 and R4each independently represent C1 4 alkyl, C1 4 alkoxy, halogeno-C1 4 alkyl, halogeno-C1 4 alkoxy or halogen, and R5represents hydrogen, or in each case optionally substituted C1 6 alkyl, phenyl, C2 4 alkenyl, C2 4 alkynyl, or a heterocyclic ring, or an alkali metal salt, alkali earth metal or organic ammonium salt of pyrimidinylthioacrylic acid derivatives of the formula (I), to processes for their preparation and their use as herbicides, as well as to novel intermediates and to a process for their preparation.