CA943953A - PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6,9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES - Google Patents

PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6,9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES

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Publication number
CA943953A
CA943953A CA171,446A CA171446A CA943953A CA 943953 A CA943953 A CA 943953A CA 171446 A CA171446 A CA 171446A CA 943953 A CA943953 A CA 943953A
Authority
CA
Canada
Prior art keywords
alpha
pregnadien
ketals
trihydroxy
dione
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
CA171,446A
Other versions
CA171446S (en
Inventor
William C. Ripka
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Priority claimed from CA123,803A external-priority patent/CA945139A/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to CA171,446A priority Critical patent/CA943953A/en
Application granted granted Critical
Publication of CA943953A publication Critical patent/CA943953A/en
Expired legal-status Critical Current

Links

CA171,446A 1971-02-01 1973-05-15 PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6,9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES Expired CA943953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA171,446A CA943953A (en) 1971-02-01 1973-05-15 PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6,9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11161571A 1971-02-01 1971-02-01
CA123,803A CA945139A (en) 1971-02-01 1971-09-27 PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6 9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES
CA171,446A CA943953A (en) 1971-02-01 1973-05-15 PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6,9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES

Publications (1)

Publication Number Publication Date
CA943953A true CA943953A (en) 1974-03-19

Family

ID=27161476

Family Applications (1)

Application Number Title Priority Date Filing Date
CA171,446A Expired CA943953A (en) 1971-02-01 1973-05-15 PROCESS FOR THE PREPARATION OF 21-CHLORO-6,6,9.alpha.-TRIFLUORO-11.beta.,16.alpha.,17.alpha.-TRIHYDROXY-1,4-PREGNADIEN-3,20-DIONE 16,17-KETALS AND SELECTED INTERMEDIATES

Country Status (1)

Country Link
CA (1) CA943953A (en)

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