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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide

4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione synthesis

4synthesis methods
675-10-5 Synthesis
4-Hydroxy-6-methyl-2-pyrone

675-10-5
236 suppliers
$9.00/1g

4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione

1204-38-2
3 suppliers
inquiry

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Yield:-

Steps:

Multi-step reaction with 3 steps
1: 45 percent / 100 °C
2: 48 percent / DMAP / toluene / Heating
3: 95 percent / DDQ

References:

Zehnder, Luke R.;Dahl, Jason W.;Hsung, Richard P. [Tetrahedron Letters,2000,vol. 41,# 12,p. 1901 - 1905]

3385-34-0 Synthesis
5-Carbethoxy-4,6-dimethyl-2-pyrone

3385-34-0
90 suppliers
$100.00/25g

4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione

1204-38-2
3 suppliers
inquiry

References
3-Acetyl-6-methyl-2-oxo-2H-pyran-4-yl difluoridoborate

67977-10-0
5 suppliers
inquiry

Acetic anhydride

108-24-7
5 suppliers
$14.00/250ML

4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione

1204-38-2
3 suppliers
inquiry

References
141-97-9 Synthesis
Ethyl acetoacetate

141-97-9
773 suppliers
$5.00/25g

4,7-Dimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione

1204-38-2
3 suppliers
inquiry

520-45-6 Synthesis
Dehydroacetic acid

520-45-6
389 suppliers
$5.00/100mg

References