BE849442A - Procede de preparation de lactones de la serie du triphenyl-methane - Google Patents

Procede de preparation de lactones de la serie du triphenyl-methane

Info

Publication number
BE849442A
BE849442A BE173292A BE173292A BE849442A BE 849442 A BE849442 A BE 849442A BE 173292 A BE173292 A BE 173292A BE 173292 A BE173292 A BE 173292A BE 849442 A BE849442 A BE 849442A
Authority
BE
Belgium
Prior art keywords
lactons
triphenyl
preparing
methane series
methane
Prior art date
Application number
BE173292A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE849442A publication Critical patent/BE849442A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
    • C07D307/88—Benzo [c] furans; Hydrogenated benzo [c] furans with one oxygen atom directly attached in position 1 or 3
    • C07D307/885—3,3-Diphenylphthalides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Furan Compounds (AREA)
BE173292A 1975-12-20 1976-12-15 Procede de preparation de lactones de la serie du triphenyl-methane BE849442A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752557687 DE2557687A1 (de) 1975-12-20 1975-12-20 Verfahren zur herstellung von lactonen der triphenylmethanreihe

Publications (1)

Publication Number Publication Date
BE849442A true BE849442A (fr) 1977-06-15

Family

ID=5965078

Family Applications (1)

Application Number Title Priority Date Filing Date
BE173292A BE849442A (fr) 1975-12-20 1976-12-15 Procede de preparation de lactones de la serie du triphenyl-methane

Country Status (8)

Country Link
US (1) US4052415A (xx)
JP (1) JPS5277131A (xx)
BE (1) BE849442A (xx)
CH (1) CH602695A5 (xx)
DE (1) DE2557687A1 (xx)
FR (1) FR2335506A1 (xx)
GB (1) GB1563598A (xx)
IT (1) IT1070012B (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835450C3 (de) * 1978-08-12 1981-04-16 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von 3,3-Bis-(4-dimethylaminophenyl)-6-dimethylaminophthalid (Kristallviolettlacton)
JPS5919548B2 (ja) * 1979-02-14 1984-05-07 保土谷化学工業株式会社 ３，３−ビス−（４−ジメチルアミノフエニル）−６−ジメチルアミノフタリドの改良製造法
AT380018B (de) * 1979-05-04 1986-03-25 Takeda Chemical Industries Ltd Verfahren zur herstellung des neuen 7-acetylspiro (benzo (b) furan-2(3h), 1'-cyclopropan)-3-ons
AT381938B (de) * 1979-06-25 1986-12-10 Takeda Chemical Industries Ltd Verfahren zur herstellung von neuen spirobenzofuranonverbindungen
US4399291A (en) * 1981-12-09 1983-08-16 Sterling Drug Inc. Process for the production of substituted aminophthalides
JPH0753828B2 (ja) * 1986-02-07 1995-06-07 山田化学工業株式会社 ３，３−ビス−（４−ジメチルアミノフエニル）−６−ジメチルアミノフタリドの製造法
JP2591618B2 (ja) * 1987-05-18 1997-03-19 山田化学工業株式会社 ３，３―ビス―（４―ジメチルアミノフェニル）―６―ジメチルアミノフタリドの製造法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185709A (en) * 1963-11-21 1965-05-25 Sterling Drug Inc Process for obtaining crystal violet lactone
DE2255470A1 (de) * 1972-11-13 1974-05-22 Basf Ag Vrfahren zur herstellung von lactonen von triarylcarbinolen

Also Published As

Publication number Publication date
FR2335506A1 (fr) 1977-07-15
US4052415A (en) 1977-10-04
GB1563598A (en) 1980-03-26
IT1070012B (it) 1985-03-25
JPS5277131A (en) 1977-06-29
CH602695A5 (xx) 1978-07-31
DE2557687A1 (de) 1977-06-30

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