CH602695A5 - - Google Patents

Info

Publication number
CH602695A5
CH602695A5 CH1601776A CH1601776A CH602695A5 CH 602695 A5 CH602695 A5 CH 602695A5 CH 1601776 A CH1601776 A CH 1601776A CH 1601776 A CH1601776 A CH 1601776A CH 602695 A5 CH602695 A5 CH 602695A5
Authority
CH
Switzerland
Application number
CH1601776A
Inventor
Kurt Dr Mayer
Original Assignee
Basf Ag
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 Basf Ag filed Critical Basf Ag
Publication of CH602695A5 publication Critical patent/CH602695A5/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
CH1601776A 1975-12-20 1976-12-20 CH602695A5 (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
CH602695A5 true CH602695A5 (fr) 1978-07-31

Family

ID=5965078

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1601776A CH602695A5 (fr) 1975-12-20 1976-12-20

Country Status (8)

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

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
IT1070012B (it) 1985-03-25
US4052415A (en) 1977-10-04
JPS5277131A (en) 1977-06-29
BE849442A (fr) 1977-06-15
GB1563598A (en) 1980-03-26
DE2557687A1 (de) 1977-06-30
FR2335506A1 (fr) 1977-07-15

Similar Documents

Publication Publication Date Title
JPS51108746A (fr)
FR2320467B1 (fr)
JPS5536236B2 (fr)
JPS5219116U (fr)
JPS51102241A (fr)
JPS5544032Y2 (fr)
JPS5543323Y2 (fr)
JPS5180043A (fr)
JPS5210974U (fr)
JPS5252457U (fr)
JPS5291750U (fr)
JPS5534445Y2 (fr)
JPS5226354Y2 (fr)
JPS5615764Y2 (fr)
JPS5436015B2 (fr)
JPS561661B2 (fr)
JPS5237504U (fr)
JPS5249587U (fr)
JPS51130079U (fr)
CH596460A5 (fr)
CH598236A5 (fr)
CH594239A5 (fr)
CH596074A5 (fr)
CH596120A5 (fr)
CH602111A5 (fr)

Legal Events

Date Code Title Description
PL Patent ceased