10071-38-2, Name is 6-Chloro-2-methylpyridazin-3(2H)-one, belongs to pyridazine compound, is a common compound. Product Details of 10071-38-2In an article, once mentioned the new application about 10071-38-2.
1,3-Dipolar cycloadditions of diazoalkanes to pyridazin-3(2H)-ones 1-7 and pyridazin-3(2H)-thiones 8 and 9 are regioselective producing 3H-pyrazolo<3.4-d>pyridazin-4(5H)-ones 15-19, 27-29 and 34-38 as the major products.In some instances, the isomeric 3H-pyrazolo<3.4-d>pyridazin-7(6H)-ones, such as 20 and 23 were isolated as the minor products.From 3 and 6 the primary 3a,7a-dihydro cycloadducts 25 and 26, and rearranged 1,2-dihydro intermediate 31 were isolated.From 10 and 1-diazoindane the isomeric exo- and endo-spiro products 39 and 40 were formed.
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Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1124 – PubChem