9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

Base Information

Chemical Name:9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione
CAS No.:2503-07-3
Molecular Formula:C₂₄H₃₁BrO₅
Molecular Weight:479.411
Hs Code.:

Synonyms:9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

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Technology Process of 9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

There total 10 articles about 9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione 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:

: 2135-12-8
16α,17-isopropylidenedioxy-pregna-1,4,9(11)-triene-3,20-dione

: 2503-07-3
9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

Guidance literature:: With 1,4-dioxane; perchloric acid; N-bromoacetamide;
DOI:10.1021/ja01527a051

Reference yield:

: 2135-13-9
9,11β-epoxy-16α,17-isopropylidenedioxy-9β-pregna-1,4-diene-3,20-dione

: 2503-07-3
9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

Guidance literature:: With tetrachloromethane; hydrogen bromide; acetic acid;
DOI:10.1021/ja01527a051

Reference yield:

: 21604-24-0
11α-hydroxy-4,16-dien-pregnan-3,20-dione

: 2503-07-3
9-bromo-11β-hydroxy-16α,17-isopropylidenedioxy-pregna-1,4-diene-3,20-dione

Guidance literature:: Multi-step reaction with 7 steps

1: KMnO₄

2: hydrochloric acid

3: pyridine

4: acetic acid; sodium acetate

5: oxalic acid diethyl ester; sodium methylate; benzene / Behandeln des nach dem Ansaeuern mit wss. Salzsaeure erhaltenen Reaktionsprudukts mit Kaliumacetat in Methanol und mit Brom in Tetrachlormethan

6: 2,4,6-trimethyl-pyridine

7: aqueous dioxane; N-bromo-acetamide; aqueous perchloric acid

With 1,4-dioxane; pyridine; 2,4,6-trimethyl-pyridine; hydrogenchloride; potassium permanganate; perchloric acid; sodium methylate; sodium acetate; acetic acid; oxalic acid diethyl ester; benzene; N-bromoacetamide;
DOI:10.1021/ja01527a051