CH440284A - Process for the preparation of optical brightening agents derived from stilbene - Google Patents

Process for the preparation of optical brightening agents derived from stilbene

Info

Publication number
CH440284A
CH440284A CH1009964A CH1009964A CH440284A CH 440284 A CH440284 A CH 440284A CH 1009964 A CH1009964 A CH 1009964A CH 1009964 A CH1009964 A CH 1009964A CH 440284 A CH440284 A CH 440284A
Authority
CH
Switzerland
Prior art keywords
stilbene
preparation
brightening agents
optical brightening
agents derived
Prior art date
Application number
CH1009964A
Other languages
French (fr)
Inventor
Ohkawa Masaaki
Yamakawa Yoshio
Kinoshita Tadao
Original Assignee
Sumitomo Chemical Co
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 Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of CH440284A publication Critical patent/CH440284A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
    • C07D263/62—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings
    • C07D263/64—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings linked in positions 2 and 2' by chains containing six-membered aromatic rings or ring systems containing such rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
    • C07D277/62—Benzothiazoles
    • C07D277/64—Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
    • C07D277/66—Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2 with aromatic rings or ring systems directly attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1009964A 1963-08-01 1964-08-01 Process for the preparation of optical brightening agents derived from stilbene CH440284A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4133163 1963-08-01
JP4280763 1963-08-13

Publications (1)

Publication Number Publication Date
CH440284A true CH440284A (en) 1967-07-31

Family

ID=26380930

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1009964A CH440284A (en) 1963-08-01 1964-08-01 Process for the preparation of optical brightening agents derived from stilbene

Country Status (4)

Country Link
BE (1) BE651310A (en)
CH (1) CH440284A (en)
DE (1) DE1470289A1 (en)
GB (1) GB1081876A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935195A (en) * 1969-04-28 1976-01-27 Sterling Drug Inc. 4,4'-Stilbenebis-pyridooxazoles and related optical brighteners and polymeric compositions brightened thereby
US4921964A (en) * 1989-03-01 1990-05-01 Eastman Kodak Company Process for the preparation of stilbene derivatives
AU2014348978B2 (en) 2013-11-15 2018-03-01 Dow Global Technologies Llc Proppants with improved dust control

Also Published As

Publication number Publication date
DE1470289A1 (en) 1969-05-08
GB1081876A (en) 1967-09-06
BE651310A (en) 1964-11-16

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