17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

Base Information

Chemical Name:17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester
CAS No.:103208-73-7
Molecular Formula:C₂₉H₃₈O₆S
Molecular Weight:514.683
Hs Code.:

Synonyms:

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Chemical Property of 17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

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Technology Process of 17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

There total 10 articles about 17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

: 26708-89-4
methyl 3α,12α-diacetoxy-17α-methyl-5β-etianate

: 103208-73-7
17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 8 steps

1: methanol. KOH / 170 °C

2: pyridine / Erwaermen des Reaktionsprodukts mit wss.-methanol. K₂CO₃

4: CrO₃; acetic acid

5: methanol. KOH

7: bromine; HBr; acetic acid / und Behandeln des Reaktionsprodukts mit Semicarbazid in CHCl₃ und tert-Butylalkohol

8: aqueous acetic acid; pyruvic acid

With pyridine; chromium(VI) oxide; potassium hydroxide; hydrogen bromide; bromine; acetic acid; 2-oxo-propionic acid;
DOI:10.1021/ja01604a056

Reference yield:

: 115211-81-9
17-methyl-3-semicarbazono-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

: 103208-73-7
17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

Guidance literature:: With acetic acid; 2-oxo-propionic acid;
DOI:10.1021/ja01604a056

Reference yield:

: 15991-93-2
3α,12α-bis(acetoxy)-5Hβ-pregnan-20-one

: 103208-73-7
17-methyl-3-oxo-12α-(toluene-4-sulfonyloxy)-androst-4-ene-17β-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 7 steps

1: bromine; HBr; acetic acid / Erwaermen des Reaktionsprodukts mit wss.-methanol. KHCO₃

3: CrO₃; acetic acid

4: methanol. KOH

6: bromine; HBr; acetic acid / und Behandeln des Reaktionsprodukts mit Semicarbazid in CHCl₃ und tert-Butylalkohol

7: aqueous acetic acid; pyruvic acid

With chromium(VI) oxide; potassium hydroxide; hydrogen bromide; bromine; acetic acid; 2-oxo-propionic acid;
DOI:10.1021/ja01604a056