13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

Base Information

Chemical Name:13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)
CAS No.:56294-43-0
Molecular Formula:C₂₄H₃₄O₄
Molecular Weight:386.532
Hs Code.:

Synonyms:13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

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Chemical Property of 13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

Chemical Property:

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Technology Process of 13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

There total 1 articles about 13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal) 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:

: 53067-82-6,170901-07-2
13β-ethyl-11α-hydroxygon-5-ene-3,17-dione

: 56294-43-0
13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

Guidance literature:: Multi-step reaction with 3 steps

1: 86 percent / HC(OEt)3, PTS / benzene / 6 h / Heating

2: 87 percent / PDC / CH₂Cl₂ / 8 h / Ambient temperature

3: 1.) NaH / 1.) DMSO, 70 deg C, 1.5 h, 2.) 60 deg C, 5 h

With dipyridinium dichromate; pyridinium p-toluenesulfonate; sodium hydride; orthoformic acid triethyl ester; In dichloromethane; benzene;
DOI:10.1080/00397919708006801

Reference yield: 86.0%

: 56294-43-0
13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

: 54024-17-8
13β-ethyl-11-methylenegon-4-en-3,17-dione

Guidance literature:: With hydrogenchloride; for 5h; Ambient temperature;
DOI:10.1080/00397919708006801

Reference yield:

: 56294-43-0
13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)

: 54024-22-5
desogestrel

Guidance literature:: Multi-step reaction with 4 steps

1: 83 percent / conc. HCl / acetone / 4.5 h / Ambient temperature

2: 91 percent / BF₃*Et₂O / tetrahydrofuran / 2.75 h / Heating

3: t-BuOK / tetrahydrofuran / 2 h / -20 - -15 °C

4: 58 percent / Na / liquid ammonia; tetrahydrofuran / 1 h / -4 °C

With hydrogenchloride; boron trifluoride diethyl etherate; potassium tert-butylate; sodium; In tetrahydrofuran; ammonia; acetone;
DOI:10.1002/recl.19881070406