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P,p{40 -bis(benzoxazolyl) tolan derivatives

Assignee: BASF Schweiz AG
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Filing: 1967-08-09
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Granted: 1971-09-28
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Expires: 1987-08-09
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Abstract

Abstract The invention relates to new tolan derivatives of the general formula OR FOR AN S-TRIAZINYL RESIDUE BOUND THROUGH A CYCLIC CARBON ATOM, A PYRAZOLYL, OXDIAZOLYL, THIADIAZOLYL, FURYL, THIENYL, CUMARYL, QUINAZOLYL, PRYIDYL OR PYRIMIDYL RESIDUE, IN WHICH GROUPINGS A represents a benzene or naphthalene residue condensed with the heterocycle in the indicated manner, and B represents a bridge member -O-, -S-, or NQ-, where Y stands for hydrogen or an unsubstituted or substituted alkyl group, and X stands for a group Y, a hydrogen or halogen atom, in alkoxy group, an unsubstituted or substituted alkyl group or aryl group, an aralkyl, amino, alkylamino, ureido group, a substituted ureido group, a urethane, carboxylic acid ester or amide group or an acylamino group.

Inventors

  • 👤 Hans Rudolf Meyer
  • 👤 Peter Liechti
  • 👤 Kurt Weber
  • 👤 Adolf Emil Siegrist

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 17:43
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/18; C07D235/20; C07D249/00; C07D249/16; C07D249/18; C07D249/20; C07D249/22; C07D263/00; C07D263/52; C07D263/54; C07D263/56; C07D263/57; C07D263/62; C07D263/64

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 9 words
A compound according to claim 1 having the formula

References Cited (Backward Citations)

US3133916A Cited
US3260715A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-09-27 1975-03-29 1975-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-09-27 1979-03-29 1979-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-09-27 1983-03-29 1983-09-28 $7700.00 Window Closed / Lapsed

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