BASF mesoionic insecticide molecule gets ISO status in June 2021. BASF has recently published a mixture patent (WO2020058010) using Fenmezoditiaz.
- STATUS: ISO 1750 (provisionally approved)
- IUPAC NAME: (3R)-3-(2-chlorothiazol-5-yl)-8-methyl-7-oxo-6-phenyl-2,3,7,8-tetrahydro[1,3]thiazolo[3,2-a]pyrimidin-4-ium-5-olate
- CAS REG. NO.: 2413390-32-4
- ACTIVITY: Insecticides (zwitterionic insecticides)
- INCHIKEY: YGDKLOWGWUOTRD-SNVBAGLBSA-N
- INCHI: InChI=1S/C16H12ClN3O2S2/c1-19-13(21)12(9-5-3-2-4-6-9)14(22)20-10(8-23-16(19)20)11-7-18-15(17)24-11/h2-7,10H,8H2,1H3/t10-/m1/s1
BASF mesoionic insecticide molecule gets ISO status in June 2021. BASF has recently published a mixture patent (WO2020058010) using Fenmezoditiaz.
Fenmezoditiaz exist in two enantiomeric forms l-R-1 and l-S-1 as shown below
Fenmezoditiaz1
Patent Link: https://patents.google.com/patent/WO2020058010A1/en?oq=WO2020058010
Fenmezoditiaz is presented in mesoionic forms. These forms may be ex- pressed in different isoelectronic formulae, each having the formal positive and negative charges on different atoms (as shown below). The present invention extends to all representative isoelectronic structures of compounds of formula I.
Fenmezoditiaz2
Compounds of formula (I) can be prepared analogously to the methods described by Holyoke et al. in WO 2009/099929 (Scheme 1), from appropriately substituted compounds (III).
Fenmezoditiaz3
Patent Link: https://patents.google.com/patent/WO2020058010A1/en?oq=WO2020058010
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