ES336022A1 - Procedure for the preparation of aldehydic steroids that, in addition to the aldehyde group, contain still at least one group ceto in the molecula. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the preparation of aldehydic steroids that, in addition to the aldehyde group, contain still at least one group ceto in the molecula. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES336022A1
ES336022A1 ES0336022A ES336022A ES336022A1 ES 336022 A1 ES336022 A1 ES 336022A1 ES 0336022 A ES0336022 A ES 0336022A ES 336022 A ES336022 A ES 336022A ES 336022 A1 ES336022 A1 ES 336022A1
Authority
ES
Spain
Prior art keywords
group
steroids
translation
machine
legally binding
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
ES0336022A
Other languages
Spanish (es)
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.)
Bayer Pharma AG
Original Assignee
Schering AG
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 Schering AG filed Critical Schering AG
Publication of ES336022A1 publication Critical patent/ES336022A1/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
    • 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)
  • Steroid Compounds (AREA)

Abstract

Process for preparing aldehyde steroids which, in addition to the aldehyde group, still contain at least one keto group in the molecule, characterized in that the corresponding organic acid steroid is reacted in the presence of an inert solvent with carhonyl diimidazole and the imidazolide group The resulting organic acid is selectively reduced to the aldehyde group by li Al (XO) 3H, where X means a straight or branched chain alkyl radical having 1 to 6 carbon atoms. (Machine-translation by Google Translate, not legally binding)
ES0336022A 1966-01-27 1967-01-24 Procedure for the preparation of aldehydic steroids that, in addition to the aldehyde group, contain still at least one group ceto in the molecula. (Machine-translation by Google Translate, not legally binding) Expired ES336022A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESC038384 1966-01-27

Publications (1)

Publication Number Publication Date
ES336022A1 true ES336022A1 (en) 1967-12-16

Family

ID=7434681

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0336022A Expired ES336022A1 (en) 1966-01-27 1967-01-24 Procedure for the preparation of aldehydic steroids that, in addition to the aldehyde group, contain still at least one group ceto in the molecula. (Machine-translation by Google Translate, not legally binding)

Country Status (11)

Country Link
BE (1) BE693274A (en)
CH (1) CH484889A (en)
DE (1) DE1593490A1 (en)
DK (1) DK114407B (en)
ES (1) ES336022A1 (en)
FI (1) FI43074B (en)
FR (1) FR1508947A (en)
GB (1) GB1160212A (en)
IL (1) IL27181A (en)
NL (1) NL6701320A (en)
SE (1) SE330886B (en)

Also Published As

Publication number Publication date
BE693274A (en) 1967-07-27
DE1593490A1 (en) 1970-10-22
CH484889A (en) 1970-01-31
IL27181A (en) 1970-11-30
DK114407B (en) 1969-06-30
GB1160212A (en) 1969-08-06
SE330886B (en) 1970-12-07
FI43074B (en) 1970-10-01
NL6701320A (en) 1967-07-28
FR1508947A (en) 1968-01-05

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