Pregna-4,6-diene-3,20-dione synthesis
- Product Name:Pregna-4,6-diene-3,20-dione
- CAS Number:1162-56-7
- Molecular formula:C21H28O2
- Molecular Weight:312.45
903-03-7
3 suppliers
inquiry
1162-56-7
219 suppliers
$75.00/5G
Yield:1162-56-7 95.8%
Reaction Conditions:
with chloranil in water;butanone at 40 - 45; for 3 h;Inert atmosphere;Reagent/catalyst;Solvent;Temperature;
Steps:
1.2; 6; 7; 8; 9 Example 6:
This embodiment provides a method for preparing 5,7-pregnadiene-3,20-dione-diethylene diketal, which is different from the preparation method of Example 1 in that in step (2 ), 200 ml of methyl ethyl ketone and 50 ml of water were added to the three-necked flask, and the ether compound prepared in Example 2 was 40 g of tetrachlorobenzoquinone. The reaction of the raw materials was detected by TLC. The solution was poured into 1000 ml of water, filtered, washed with water, and dried to obtain 47.6 g of 6-dehydroprogesterone as a white solid. The yield of 6-dehydroprogesterone from progesterone was 95.8% and the purity was 96.1%.
References:
CN110790808,2020,A Location in patent:Page/Page column 7-9
145-13-1
513 suppliers
$28.00/500mg
1162-56-7
219 suppliers
$75.00/5G
434-03-7
326 suppliers
$22.39/1G
1162-56-7
219 suppliers
$75.00/5G
57-83-0
843 suppliers
$17.00/1g
1162-56-7
219 suppliers
$75.00/5G