FR1171908A - Process for the selective reduction of delta 4 - 3 - ketosteroids to 5 - beta -dihydrosteroids - Google Patents

Process for the selective reduction of delta 4 - 3 - ketosteroids to 5 - beta -dihydrosteroids

Info

Publication number
FR1171908A
FR1171908A FR1171908DA FR1171908A FR 1171908 A FR1171908 A FR 1171908A FR 1171908D A FR1171908D A FR 1171908DA FR 1171908 A FR1171908 A FR 1171908A
Authority
FR
France
Prior art keywords
dihydrosteroids
ketosteroids
delta
beta
selective reduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Italia SRL
Original Assignee
Farmaceutici Italia SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Farmaceutici Italia SpA filed Critical Farmaceutici Italia SpA
Application granted granted Critical
Publication of FR1171908A publication Critical patent/FR1171908A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J9/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
FR1171908D 1953-09-05 1954-09-03 Process for the selective reduction of delta 4 - 3 - ketosteroids to 5 - beta -dihydrosteroids Expired FR1171908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1171908X 1953-09-05

Publications (1)

Publication Number Publication Date
FR1171908A true FR1171908A (en) 1959-02-03

Family

ID=11432499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1171908D Expired FR1171908A (en) 1953-09-05 1954-09-03 Process for the selective reduction of delta 4 - 3 - ketosteroids to 5 - beta -dihydrosteroids

Country Status (1)

Country Link
FR (1) FR1171908A (en)

Similar Documents

Publication Publication Date Title
FR1109927A (en) Process for the production of substituted 1-3-4-thiadiazol derivatives
FR1095643A (en) Process for the production of hydroperoxides
FR1168248A (en) Process for the production of polyamides
FR1171912A (en) Process for the preparation of 3-acetyl-4-hydroxycoumarin
FR1171908A (en) Process for the selective reduction of delta 4 - 3 - ketosteroids to 5 - beta -dihydrosteroids
BE599716A (en) Process for the production of p-alkyl- or p-cycloalkoylphenols
FR1112494A (en) Process for the production of neutrocyanins
FR1105791A (en) Process for the production of perchlorethylene
FR1086957A (en) Casting process
FR1192495A (en) Process for the production of cyclooctatetraene
FR1182449A (en) Process for the production of nu-nitroso-nu-alcoyl- and nu-nitroso-nu-cycloalkyl-hydroxylamines
FR1190054A (en) Process for the production of ferrites
FR1095638A (en) Process for the regeneration of catalysts
FR1093184A (en) Process for preparing epsilon-oxy-caproic esters
FR63683E (en) Process for the production of tetrahydrocarboline derivatives
FR64893E (en) Process for the production of tetrahydrocarboline derivatives
FR1159181A (en) Process for the preparation of propynyl carbinols
FR1091768A (en) Process for the separation of diamonds
FR1133540A (en) Process for the production of butadiene
FR1164523A (en) Process for the production of 4-aminopyrazoles
FR1139981A (en) Process for the production of 1-2-epoxycyclooctane
FR1179950A (en) Process for the production of 1-2-diamino-cyclohexanes
FR1186156A (en) Process for the production of 1-aminobenzophenone-sulfone-2-aldehydes or -ketones
FR1166341A (en) Process for the production of cyclooctatetraene
FR1182299A (en) Process for the production of cyclopolyolefins