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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
ChemicalBook CAS DataBase List Androstene-3,17-dione-2,3,4-13C3
327048-86-2

Androstene-3,17-dione-2,3,4-13C3 synthesis

3synthesis methods
Cyclopenta[5,6]naphtho[1,2-c]pyran-2(4H)-one, 4a,4b,5,6,6a,7,8,9,9a,9b,10,11-dodecahydro-7-hydroxy-4a,6a-dimethyl-, (4aR,4bS,6aS,7S,9aS,9bR)-

63973-71-7
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Androstene-3,17-dione-2,3,4-13C3

327048-86-2
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$302.00/1mL(100ug/mL)

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Yield:-

Steps:

Multi-step reaction with 5 steps
1.1: O3 / ethyl acetate; methanol / 0.22 h / -78 °C
1.2: Me2S / 2 h / 20 °C
1.3: 88 percent / aq. K2CO3 / diethyl ether / 20 °C
2.1: 88 percent / Et3N; SO3*pyridine / dimethylsulfoxide / 1.5 h / 20 °C
3.1: 54 percent / xylene / 72 h / Heating
4.1: 92 percent / H2 / Pd/C / ethanol / 4 h / 2250.18 Torr
5.1: 87 percent / aq. KOH / methanol / 1 h / 20 °C

References:

Kockert, Karlheinz;Vierhapper, Friedrich W [Tetrahedron,2000,vol. 56,# 51,p. 9967 - 9974]

Cyclopenta[5,6]naphtho[1,2-c]pyran-2(4H)-one, 4a,4b,5,6,6a,7,8,9,9a,9b,10,11-dodecahydro-1,7-dihydroxy-6a-methyl-, (4aR,4bS,6aS,7S,9aS,9bS)- (9CI)

14029-90-4
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Androstene-3,17-dione-2,3,4-13C3

327048-86-2
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References
1H-Benz[e]indene-6-carboxaldehyde, dodecahydro-3a,6-dimethyl-3,7-dioxo-, (3aS,5aS,6S,9aS,9bS)-

327048-99-7
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Androstene-3,17-dione-2,3,4-13C3

327048-86-2
25 suppliers
$302.00/1mL(100ug/mL)

References