ChemicalBook CAS DataBase List 1-methyl-6,7-dihydro-1H-indazol-5(4H)-one

1-methyl-6,7-dihydro-1H-indazol-5(4H)-one synthesis

3synthesis methods

Product Name:1-methyl-6,7-dihydro-1H-indazol-5(4H)-one
CAS Number:115215-92-4
Molecular formula:C8H10N2O
Molecular Weight:150.18

(Z)-7-(hydroxymethylene)-1,4-dioxaspiro[4.5]decan-8-one

115215-91-3
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60-34-4
2 suppliers
$65.59/25g

5H-Indazol-5-one, 2,4,6,7-tetrahydro-2-methyl-

904664-22-8
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1-methyl-6,7-dihydro-1H-indazol-5(4H)-one

115215-92-4
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Yield:904664-22-8 36% ，115215-92-4 4%

Reaction Conditions:

Stage #1: 7-(hydroxymethylene)-1,4-dioxaspiro<4.5>decan-8-one;methylhydrazine in methanol at -30 - 20;
Stage #2: with hydrogenchloride in water;acetone at 60; for 2 h;

References:

Josef, Kurt A.;Dandu, Reddeppareddy;Tao, Ming;Hudkins, Robert L. [Journal of Heterocyclic Chemistry,2006,vol. 43,# 3,p. 719 - 722]

4746-97-8 Synthesis

4746-97-8
460 suppliers
$5.00/1g

115215-92-4
12 suppliers
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References

115215-91-3
5 suppliers
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115215-92-4
12 suppliers
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References