932-22-9, Name is 4,5-Dichloro-3(2H)-pyridazinone, belongs to pyridazine compound, is a common compound. Formula: C4H2Cl2N2OIn an article, once mentioned the new application about 932-22-9.
A compound represented by the formula (I) or a salt thereof: wherein a ring Z is a 5 to 6-membered heteroaromatic ring having one or two heteroatoms in the ring; X1 is a hydrogen atom, a hydroxy group, a hydroxy C1-6 alkyl group, ?B(OH)2, a boronate ester group, a cyclic boronate ester group, a boranyl group, a cyclic boranyl group, ?BF3Mn1, ?Sn(R12)(R13)(R14), a leaving group, a carboxy group, a formyl group, or ?NR16R17; and X2 is a hydrogen atom or ?CO2R18.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N2274 – PubChem