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
GB665419A GB26470/49A GB2647049A GB665419A GB 665419 A GB665419 A GB 665419A GB 26470/49 A GB26470/49 A GB 26470/49A GB 2647049 A GB2647049 A GB 2647049A GB 665419 A GB665419 A GB 665419A
Authority
GB
United Kingdom
Prior art keywords
oxycoumarin
bis
aqueous solution
methylene
derivatives
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
GB26470/49A
Other languages
English (en)
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.)
Filing date
Publication date
Application filed by N V Amsterdamsche Chininefabriek filed Critical N V Amsterdamsche Chininefabriek
Publication of GB665419A publication Critical patent/GB665419A/en
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 (de)
NL (1) NL145672C (de)

Also Published As

Publication number Publication date
NL145672C (de)

Similar Documents

Publication Publication Date Title
GB665419A (en) Process for the manufacture of derivatives of 3:3-methylene-bis-(4-oxycoumarin)
US2179978A (en) Process for the manufacture of levo-ascorbic acid
GB733650A (en) Isophorone and its homologues
GB592827A (en) Improvements in or relating to the manufacture of phenoxyalkylcarboxylic compounds
GB670445A (en) Recovery of by-products in the manufacture of phenol
GB560165A (en) Improvements in or relating to the manufacture of pentaerythritol
SU106758A1 (ru) Способ бисульфитации ванилина, получаемого из лигносульфонатов
GB717904A (en) Improvements in or relating to methods of producing ª‰-ionylidene acetaldehyde
GB914734A (en) New cyclopentano-naphthalene derivatives and their formation
GB485266A (en) Process for the preparation of bisulphite addition compounds of etherified derivatives of pentahydroxy-fuchsone
SU81744A1 (ru) Способ получени гамма-метил-эпсилон-изопропил-эпсилон-капролактона и других эпсилон-капролактонов
SU64280A1 (ru) Способ получени диэтилсульфата
GB810500A (en) 1, 2-epoxy-2-methyl pentane and its conversion to 2-methyl-pentanal-1
GB565474A (en) A process of synthesising aldehydes and lactones
GB230082A (en) The manufacture of new acridine compounds
GB914732A (en) New cyclopentano-naphthalene derivatives and their formation
GB670402A (en) Process of producing thiosemicarbazones of cyclic aldehydes
GB1048510A (en) Preparation of 2,3-dichlorobutadiene-1,3
GB640477A (en) Production of hydroxy ketones from acetylenic alcohols
GB711307A (en) Improvements in or relating to a new derivative of ª -pyridine aldehyde
GB198615A (en) Process for the manufacture of 1-phenyl-2.3-dimethyl-4-dimethylamino-5-pyrazolone
GB858487A (en) Process for the production of 4-methyl-4-phenyl-1:3-dioxan
GB695717A (en) Sodium carbonate in cumene oxidation
GB348001A (en) Manufacture of alkoxyaldehydes
GB640213A (en) Improvements in recovery of chlorobenzene