AT306262B - Process for the preparation of new 1,2α-methylene-6,7α-dihalomethylene-20-spiroxa-4-enes oxygenated in the 3- and 21-positions - Google Patents

Process for the preparation of new 1,2α-methylene-6,7α-dihalomethylene-20-spiroxa-4-enes oxygenated in the 3- and 21-positions

Info

Publication number
AT306262B
AT306262B AT649771A AT649771A AT306262B AT 306262 B AT306262 B AT 306262B AT 649771 A AT649771 A AT 649771A AT 649771 A AT649771 A AT 649771A AT 306262 B AT306262 B AT 306262B
Authority
AT
Austria
Prior art keywords
spiroxa
dihalomethylene
enes
oxygenated
methylene
Prior art date
Application number
AT649771A
Other languages
German (de)
Original Assignee
Merck & Co Inc
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 Merck & Co Inc filed Critical Merck & Co Inc
Application granted granted Critical
Publication of AT306262B publication Critical patent/AT306262B/en

Links

AT649771A 1970-03-19 1970-05-12 Process for the preparation of new 1,2α-methylene-6,7α-dihalomethylene-20-spiroxa-4-enes oxygenated in the 3- and 21-positions AT306262B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2118370A 1970-03-19 1970-03-19

Publications (1)

Publication Number Publication Date
AT306262B true AT306262B (en) 1973-04-10

Family

ID=21802810

Family Applications (2)

Application Number Title Priority Date Filing Date
AT366572A AT316022B (en) 1970-03-19 1970-05-12 Process for the preparation of new 1,2α-methylene-6,7α-dihalomethylene-20-spiroxa-4-enes
AT649771A AT306262B (en) 1970-03-19 1970-05-12 Process for the preparation of new 1,2α-methylene-6,7α-dihalomethylene-20-spiroxa-4-enes oxygenated in the 3- and 21-positions

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT366572A AT316022B (en) 1970-03-19 1970-05-12 Process for the preparation of new 1,2α-methylene-6,7α-dihalomethylene-20-spiroxa-4-enes

Country Status (3)

Country Link
AR (1) AR195544A1 (en)
AT (2) AT316022B (en)
ES (1) ES409205A1 (en)

Also Published As

Publication number Publication date
AT316022B (en) 1974-06-25
AR195544A1 (en) 1973-10-23
ES409205A1 (en) 1975-12-16

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