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.)
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.)
Laroche Navarron SA
Original Assignee
Laroche Navarron SA
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 Laroche Navarron SAfiledCriticalLaroche Navarron SA
Application grantedgrantedCritical
Publication of FR1171916ApublicationCriticalpatent/FR1171916A/fr
C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR1171916D1954-10-061954-10-06Procédé perfectionné de préparation de la méthyl-3-chromone
ExpiredFR1171916A
(fr)