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.)
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HOFFMANN LA ROCHE
F Hoffmann La Roche AG
Original Assignee
HOFFMANN LA ROCHE
F Hoffmann La Roche AG
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Filing date
Publication date
Application filed by HOFFMANN LA ROCHE, F Hoffmann La Roche AGfiledCriticalHOFFMANN LA ROCHE
Application grantedgrantedCritical
Publication of FR1134341ApublicationCriticalpatent/FR1134341A/fr
C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
C07C45/87—Preparation of ketenes or dimeric ketenes
C07C45/88—Preparation of ketenes or dimeric ketenes from ketones
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
FR1134341D1954-04-091955-04-08Procédé pour la préparation d'un dicétène
ExpiredFR1134341A
(fr)