DK59225C - Fremgangsmaade til Fremstilling af alkylerede 2-Dialkyl-6-Oksykromaner. - Google Patents

Fremgangsmaade til Fremstilling af alkylerede 2-Dialkyl-6-Oksykromaner.

Info

Publication number: DK59225C
Authority: DK; Denmark
Prior art keywords: oxychromans; alkylated; dialkyl; preparation
Prior art date: 1939-07-28

Application number

Other languages

Original Assignee

Hoffmann La Roche

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.)

1939-07-28

Filing date

1940-07-16

Publication date

1941-11-24

1939-07-28 Priority claimed from CH5300639A external-priority patent/CH221217A/de

1940-07-16 Application filed by Hoffmann La Roche filed Critical Hoffmann La Roche

1941-11-24 Application granted granted Critical

1941-11-24 Publication of DK59225C publication Critical patent/DK59225C/da

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- 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
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

DK59225D 1939-07-28 1940-07-16 Fremgangsmaade til Fremstilling af alkylerede 2-Dialkyl-6-Oksykromaner. DK59225C (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH5300639A CH221217A (de)	1939-07-28	1939-07-28	Verfahren zur Darstellung von 2,2,5,7,8-Pentamethyl-6-oxychroman.

Publications (1)

Publication Number	Publication Date
DK59225C true DK59225C (da)	1941-11-24

Family

ID=38422733

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK59225D DK59225C (da)	1939-07-28	1940-07-16	Fremgangsmaade til Fremstilling af alkylerede 2-Dialkyl-6-Oksykromaner.

Country Status (4)

Country	Link
DE (1)	DE719438C (da)
DK (1)	DK59225C (da)
ES (1)	ES150039A1 (da)
FR (1)	FR870537A (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH424801A (de) *	1963-07-04	1966-11-30	Hoffmann La Roche	Verfahren zur Herstellung von Chromanverbindungen

1940
- 1940-07-16 DK DK59225D patent/DK59225C/da active
- 1940-07-19 DE DEH162784A patent/DE719438C/de not_active Expired
- 1940-07-26 ES ES0150039A patent/ES150039A1/es not_active Expired
1941
- 1941-03-04 FR FR870537D patent/FR870537A/fr not_active Expired

Also Published As

Publication number	Publication date
DE719438C (de)	1942-04-09
ES150039A1 (es)	1942-06-01
FR870537A (fr)	1942-03-13

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