ES384217A1 - Preparation of pyridyl chromenols - Google Patents

Preparation of pyridyl chromenols

Info

Publication number
ES384217A1
ES384217A1 ES384217A ES384217A ES384217A1 ES 384217 A1 ES384217 A1 ES 384217A1 ES 384217 A ES384217 A ES 384217A ES 384217 A ES384217 A ES 384217A ES 384217 A1 ES384217 A1 ES 384217A1
Authority
ES
Spain
Prior art keywords
formula
preparation
carbon atoms
lower alkyl
chromenols
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
ES384217A
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.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
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 Beecham Group PLC filed Critical Beecham Group PLC
Publication of ES384217A1 publication Critical patent/ES384217A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Improvements introduced in the object of the main patent nº 352,696 for: "A PROCEDURE FOR THE PREPARATION OF A COMPOUND OF THE GROUP FORMED BY 7-ALQUIL- (AND 7-CICLOALQUIL-LOWER RENT) -4- (4-PIRIDIL) -2, 2,3-TRIALCHYL-5-CHROMANOL "of formula I. **(See formula)** where R1 is lower alkyl of 1 to 6 carbon atoms and R2 is lower alkyl or cycloalkylalkyl of 1 to 20 carbon atoms, the improvements of which are to react a coumarin of formula II **(See formula)** with a Grignard reagent of formula R1MgX, where X is halogen, at a temperature below 50ºC, in a reaction medium that is inert under the reaction conditions. (Machine-translation by Google Translate, not legally binding)
ES384217A 1969-10-15 1970-10-02 Preparation of pyridyl chromenols Expired ES384217A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50703/69A GB1280044A (en) 1969-10-15 1969-10-15 Preparation of pyridyl chromenols

Publications (1)

Publication Number Publication Date
ES384217A1 true ES384217A1 (en) 1973-01-16

Family

ID=10457014

Family Applications (1)

Application Number Title Priority Date Filing Date
ES384217A Expired ES384217A1 (en) 1969-10-15 1970-10-02 Preparation of pyridyl chromenols

Country Status (9)

Country Link
AT (1) AT298487B (en)
BE (1) BE757454R (en)
DE (1) DE2050496A1 (en)
ES (1) ES384217A1 (en)
FR (1) FR2070131B2 (en)
GB (1) GB1280044A (en)
IE (1) IE34540B1 (en)
NL (1) NL7014946A (en)
ZA (1) ZA706821B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE713490A (en) * 1967-04-14 1968-10-10

Also Published As

Publication number Publication date
FR2070131B2 (en) 1974-09-20
BE757454R (en) 1971-04-13
FR2070131A2 (en) 1971-09-10
AT298487B (en) 1972-05-10
IE34540B1 (en) 1975-06-11
DE2050496A1 (en) 1971-04-22
ZA706821B (en) 1971-12-29
IE34540L (en) 1971-04-15
NL7014946A (en) 1971-04-19
GB1280044A (en) 1972-07-05

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