GB665419A - Process for the manufacture of derivatives of 3:3-methylene-bis-(4-oxycoumarin) - Google Patents

Process for the manufacture of derivatives of 3:3-methylene-bis-(4-oxycoumarin)

Info

Publication number: GB665419A
Authority: GB; United Kingdom
Prior art keywords: oxycoumarin; bis; aqueous solution; methylene; derivatives
Prior art date: 1949-03-29
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

GB26470/49A

Other languages

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.)

N V Amsterdamsche Chininefabriek

Original Assignee

N V Amsterdamsche Chininefabriek

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.)

1949-03-29

Filing date

1949-10-14

Publication date

1952-01-23

1949-10-14 Application filed by N V Amsterdamsche Chininefabriek filed Critical N V Amsterdamsche Chininefabriek

1952-01-23 Publication of GB665419A publication Critical patent/GB665419A/en

Status Expired legal-status Critical Current

Links

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
- C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
- C07D311/44—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
- C07D311/46—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
- C07D311/48—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring with two such benzopyran radicals linked together by a carbon chain

Landscapes

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

GB26470/49A 1949-03-29 1949-10-14 Process for the manufacture of derivatives of 3:3-methylene-bis-(4-oxycoumarin) Expired GB665419A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL665419X		1949-03-29

Publications (1)

Publication Number	Publication Date
GB665419A true GB665419A (en)	1952-01-23

Family

ID=19798730

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB26470/49A Expired GB665419A (en)	1949-03-29	1949-10-14	Process for the manufacture of derivatives of 3:3-methylene-bis-(4-oxycoumarin)

Country Status (2)

Country	Link
GB (1)	GB665419A (xx)
NL (1)	NL145672C (xx)

0
- NL NL145672D patent/NL145672C/xx active
1949
- 1949-10-14 GB GB26470/49A patent/GB665419A/en not_active Expired

Also Published As

Publication number	Publication date
NL145672C (xx)

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