GB9314159D0 — Chemical process
Assigned to Syngenta Ltd · Expires 1993-08-18 · 33y expired
What this patent protects
PCT No. PCT/GB94/01227 Sec. 371 Date Jan. 5, 1996 Sec. 102(e) Date Jan. 5, 1996 PCT Filed Jun. 6, 1994 PCT Pub. No. WO95/01951 PCT Pub. Date Jan. 19, 1995A method for the preparation of a 2-hydroxyarylaldehyde which comprises reacting a magnesium bis-hydrocarbyloxide, derived at …
USPTO Abstract
PCT No. PCT/GB94/01227 Sec. 371 Date Jan. 5, 1996 Sec. 102(e) Date Jan. 5, 1996 PCT Filed Jun. 6, 1994 PCT Pub. No. WO95/01951 PCT Pub. Date Jan. 19, 1995A method for the preparation of a 2-hydroxyarylaldehyde which comprises reacting a magnesium bis-hydrocarbyloxide, derived at least in part from a hydroxyaromatic compound having at least one free position ortho to the hydroxyl group, with formaldehyde or a formaldehyde-liberating compound under substantially anhydrous conditions at a pressure of from 50 to 700 mm Hg absolute.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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