The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2006
Filed:
Oct. 25, 2002
Jean-pierre Wolf, Maisprach, CH;
Gebhard Hug, Rheinfelden, CH;
Jean-Pierre Wolf, Maisprach, CH;
Gebhard Hug, Rheinfelden, CH;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
Compounds of the formula Iin which or unsubstituted or substituted cyclopentyl, cyclohexyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; Rand Rare C-Calkyl, OR, CFor halogen; R, Rand Rare hydrogen, C-Calkyl, ORor halogen; Ris unsubstituted or substituted C-Calkyl, C-Calkyl, which is interrupted by O, S or NRand is unsubstituted or substituted; C-Calkenyl, uninterrupted or interrupted by O, S or NRand unsubstituted or substituted; unsubstituted or substituted C-Carylalkyl; C-Ccycloalkyl, uninterrupted or interrupted by O, S and/or NR; or C-Carylcycloalkyl; Ris C-Calkyl, C-Ccycloalkyl, phenyl, benzyl or C-Calkyl, interrupted by O or S and unsubstituted or substituted; Rand Rare hydrogen, C-Calkyl, C-Ccycloalkyl, phenyl, benzyl or C-Calkyl, interrupted by O atoms and unsubstituted or substituted; or Rand Rtogether are C-Calkylene, uninterrupted or interrupted by O, S or NR; Ris hydrogen, phenyl, C-Calkyl or C-Calkyl, interrupted by O or S and unsubstituted or substituted; and M is hydrogen, Li, Na or K; are valuable intermediates for the preparation of unsymmetrical bisacylphosphine oxides and monoacylphosphine oxides.