← Back to Patent Explorer
US4168388A Expired / Lapsed US ⏱️ 0.0 years remaining

Trifluoromethylphenyl benzyl ethers

Assignee: Eli Lilly and Co
•
Filing: 1978-03-23
•
Granted: 1979-09-18
•
Expires: 1998-03-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Trifluoromethylphenols are prepared by hydrogenation of the corresponding trifluoromethylbenzylethers.

Inventors

  • 👤 Edward R. Lavagnino
  • 👤 Bryan B. Molloy
  • 👤 Paul Pranc

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 03:35
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/225; C07C37/00; C07C37/01; C07C37/055; C07C41/00; C07C41/01; C07C41/16; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 50 words
As a new composition of matter, a compound of the formula ##STR3## wherein R 1 and R 2 when taken individually are nitro, C 1 -C 3 alkyl or methoxy and when taken together and when occupying adjacent carbons, methylenedioxy and n and m taken individually are 0 and 1.
Claim 2
Dependent Claim 50 words
As a new composition of matter, a compound of the formula ##STR3## wherein R 1 and R 2 when taken individually are nitro, C 1 -C 3 alkyl or methoxy and when taken together and when occupying adjacent carbons, methylenedioxy and n and m taken individually are 0 and 1.
Claim 3
Dependent Claim 12 words
A compound according to claim 1, said compound being 4-trifluoromethylphenyl benzyl ether.

References Cited (Backward Citations)

US2159025A Cited
US2213215A Cited
US2243479A Cited
US3207786A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-09-17 1983-03-19 1983-09-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-09-17 1987-03-19 1987-09-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-09-17 1991-03-19 1991-09-18 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag