CH398598A - Process for the preparation of novel compounds of the 3-alkyl, 3'-methyl-spiro- (benzoxazole-2,2 '- (2'H-1'-benzopyran)) series - Google Patents

Process for the preparation of novel compounds of the 3-alkyl, 3'-methyl-spiro- (benzoxazole-2,2 '- (2'H-1'-benzopyran)) series

Info

Publication number
CH398598A
CH398598A CH794960A CH794960A CH398598A CH 398598 A CH398598 A CH 398598A CH 794960 A CH794960 A CH 794960A CH 794960 A CH794960 A CH 794960A CH 398598 A CH398598 A CH 398598A
Authority
CH
Switzerland
Prior art keywords
benzopyran
benzoxazole
spiro
alkyl
methyl
Prior art date
Application number
CH794960A
Other languages
French (fr)
Original Assignee
Ncr 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
Priority claimed from US827468A external-priority patent/US3036684A/en
Application filed by Ncr Co filed Critical Ncr Co
Publication of CH398598A publication Critical patent/CH398598A/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
    • C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
    • C07D263/56—Benzoxazoles; Hydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
CH794960A 1959-07-16 1960-07-12 Process for the preparation of novel compounds of the 3-alkyl, 3'-methyl-spiro- (benzoxazole-2,2 '- (2'H-1'-benzopyran)) series CH398598A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US82746359A 1959-07-16 1959-07-16
US827468A US3036684A (en) 1959-07-16 1959-07-16 Toll collecting machine
US173355A US3149120A (en) 1959-07-16 1962-02-15 3, 3'-dimethyl-6'-nitro-spiro

Publications (1)

Publication Number Publication Date
CH398598A true CH398598A (en) 1966-03-15

Family

ID=27390266

Family Applications (1)

Application Number Title Priority Date Filing Date
CH794960A CH398598A (en) 1959-07-16 1960-07-12 Process for the preparation of novel compounds of the 3-alkyl, 3'-methyl-spiro- (benzoxazole-2,2 '- (2'H-1'-benzopyran)) series

Country Status (4)

Country Link
US (1) US3149120A (en)
CH (1) CH398598A (en)
GB (1) GB889186A (en)
NL (2) NL253899A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394163A (en) * 1964-02-18 1965-04-02 Saint Gobain Photochromic compositions, in particular for the manufacture of variable transmission glazing
NL6600777A (en) * 1965-01-25 1966-07-26
US3450530A (en) * 1965-09-03 1969-06-17 Xerox Corp Photographic imaging by means of the surface tension created by photochromic materials
US3450531A (en) * 1965-09-03 1969-06-17 Xerox Corp Adhesive imaging on photochromic layers
US3482973A (en) * 1965-10-01 1969-12-09 Xerox Corp Imaging system
US3507563A (en) * 1967-02-01 1970-04-21 Itek Corp Color-reversible anti-glare mirror
US3532638A (en) * 1967-04-28 1970-10-06 Eastman Kodak Co Phototropic compositions
JPS491566A (en) * 1972-04-28 1974-01-08

Also Published As

Publication number Publication date
NL123451C (en)
NL253899A (en)
GB889186A (en) 1962-02-07
US3149120A (en) 1964-09-15

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