CA967970A - Intermediates for thieno benzopyrans and thiopyrano benzopyrans - Google Patents

Intermediates for thieno benzopyrans and thiopyrano benzopyrans

Info

Publication number
CA967970A
CA967970A CA200,489A CA200489A CA967970A CA 967970 A CA967970 A CA 967970A CA 200489 A CA200489 A CA 200489A CA 967970 A CA967970 A CA 967970A
Authority
CA
Canada
Prior art keywords
benzopyrans
thiopyrano
thieno
intermediates
thiopyrano benzopyrans
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
CA200,489A
Other versions
CA200489S (en
Inventor
Raj K. Razdan
Harry G. Pars
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.)
Arthur D Little Inc
Original Assignee
Arthur D Little 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
Priority claimed from CA084,843A external-priority patent/CA967969A/en
Application filed by Arthur D Little Inc filed Critical Arthur D Little Inc
Priority to CA200,489A priority Critical patent/CA967970A/en
Application granted granted Critical
Publication of CA967970A publication Critical patent/CA967970A/en
Expired legal-status Critical Current

Links

CA200,489A 1969-08-25 1974-05-22 Intermediates for thieno benzopyrans and thiopyrano benzopyrans Expired CA967970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA200,489A CA967970A (en) 1969-08-25 1974-05-22 Intermediates for thieno benzopyrans and thiopyrano benzopyrans

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85292869A 1969-08-25 1969-08-25
CA084,843A CA967969A (en) 1969-08-25 1970-06-05 Thieno benzopyrans and thiopyrano benzopyrans, intermediates for their preparation and method of making them
CA200,489A CA967970A (en) 1969-08-25 1974-05-22 Intermediates for thieno benzopyrans and thiopyrano benzopyrans

Publications (1)

Publication Number Publication Date
CA967970A true CA967970A (en) 1975-05-20

Family

ID=27160684

Family Applications (1)

Application Number Title Priority Date Filing Date
CA200,489A Expired CA967970A (en) 1969-08-25 1974-05-22 Intermediates for thieno benzopyrans and thiopyrano benzopyrans

Country Status (1)

Country Link
CA (1) CA967970A (en)

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